diff --git a/OpenUtau.Plugin.Builtin/BaseKoreanPhonemizer.cs b/OpenUtau.Plugin.Builtin/BaseKoreanPhonemizer.cs
index 3eed0c1ea..6a8604293 100644
--- a/OpenUtau.Plugin.Builtin/BaseKoreanPhonemizer.cs
+++ b/OpenUtau.Plugin.Builtin/BaseKoreanPhonemizer.cs
@@ -40,7 +40,10 @@ protected virtual bool additionalTest(string lyric) {
             int? alt = attr.alternate ?? GetParentAlternate();
             if (phoneme.Equals("")) {return phoneme;}
 
-            if (singer.TryGetMappedOto(phoneme + alt, note.tone + toneShift, color, out var oto)) {
+            if (singer.TryGetMappedOto(phoneme + alt, note.tone + toneShift, color, out var otoAlt)) {
+                phonemeToReturn = otoAlt.Alias;
+            } 
+            else if (singer.TryGetMappedOto(phoneme, note.tone + toneShift, color, out var oto)) {
                 phonemeToReturn = oto.Alias;
             } 
             else if (singer.TryGetMappedOto(phoneme, note.tone, color, out oto)) {
diff --git a/OpenUtau.Plugin.Builtin/CantoneseSyoPhonemizer.cs b/OpenUtau.Plugin.Builtin/CantoneseSyoPhonemizer.cs
index 410ac8aee..4b90801b0 100644
--- a/OpenUtau.Plugin.Builtin/CantoneseSyoPhonemizer.cs
+++ b/OpenUtau.Plugin.Builtin/CantoneseSyoPhonemizer.cs
@@ -312,7 +312,9 @@ private bool checkOtoUntilHit(List<string> input, Note note, out UOto oto) {
 
             var otos = new List<UOto>();
             foreach (string test in input) {
-                if (singer.TryGetMappedOto(test + alt, note.tone + shift, color, out var otoCandidacy)) {
+                if (singer.TryGetMappedOto(test + alt, note.tone + shift, color, out var otoAlt)) {
+                    otos.Add(otoAlt);
+                } else if (singer.TryGetMappedOto(test, note.tone + shift, color, out var otoCandidacy)) {
                     otos.Add(otoCandidacy);
                 }
             }
@@ -337,7 +339,9 @@ private bool checkOtoUntilHitFinal(List<string> input, Note note, out UOto oto)
 
             var otos = new List<UOto>();
             foreach (string test in input) {
-                if (singer.TryGetMappedOto(test + alt, note.tone + shift, color, out var otoCandidacy)) {
+                if (singer.TryGetMappedOto(test + alt, note.tone + shift, color, out var otoAlt)) {
+                    otos.Add(otoAlt);
+                } else if (singer.TryGetMappedOto(test, note.tone + shift, color, out var otoCandidacy)) {
                     otos.Add(otoCandidacy);
                 }
             }
diff --git a/OpenUtau.Plugin.Builtin/ChineseCVVPlusPhonemizer.cs b/OpenUtau.Plugin.Builtin/ChineseCVVPlusPhonemizer.cs
index 8071effd9..0ff97bb3e 100644
--- a/OpenUtau.Plugin.Builtin/ChineseCVVPlusPhonemizer.cs
+++ b/OpenUtau.Plugin.Builtin/ChineseCVVPlusPhonemizer.cs
@@ -236,7 +236,9 @@ public bool isExistPhonemeInOto(string phoneme, Note note) {
                 return false;
             }
 
-            if (singer.TryGetMappedOto(phoneme + alt, note.tone + toneShift, color, out var oto)) {
+            if (singer.TryGetMappedOto(phoneme + alt, note.tone + toneShift, color, out var otoAlt)) {
+                return true;
+            } else if (singer.TryGetMappedOto(phoneme, note.tone + toneShift, color, out var oto)) {
                 return true;
             } else if (singer.TryGetMappedOto(phoneme, note.tone, color, out oto)) {
                 return true;
@@ -251,7 +253,10 @@ string GetOtoAlias(string phoneme, Note note) {
             var toneShift = attr.toneShift ?? GetParentToneShift();
             int? alt = attr.alternate ?? GetParentAlternate();
 
-            if (singer.TryGetMappedOto(phoneme + alt, note.tone + toneShift, color, out var oto)) {
+
+            if (singer.TryGetMappedOto(phoneme + alt, note.tone + toneShift, color, out var otoAlt)) {
+                return otoAlt.Alias;
+            } else if (singer.TryGetMappedOto(phoneme, note.tone + toneShift, color, out var oto)) {
                 return oto.Alias;
             } else if (singer.TryGetMappedOto(phoneme, note.tone, color, out oto)) {
                 return oto.Alias;
diff --git a/OpenUtau.Plugin.Builtin/JapaneseCVVCPhonemizer.cs b/OpenUtau.Plugin.Builtin/JapaneseCVVCPhonemizer.cs
index 11acdceea..820e17f12 100644
--- a/OpenUtau.Plugin.Builtin/JapaneseCVVCPhonemizer.cs
+++ b/OpenUtau.Plugin.Builtin/JapaneseCVVCPhonemizer.cs
@@ -109,7 +109,9 @@ private bool checkOtoUntilHit(string[] input, Note note, out UOto oto) {
 
             var otos = new List<UOto>();
             foreach (string test in input) {
-                if (singer.TryGetMappedOto(test + alt, note.tone + shift, color, out var otoCandidacy)) {
+                if (singer.TryGetMappedOto(test + alt, note.tone + shift, color, out var otoAlt)) {
+                    otos.Add(otoAlt);
+                } else if (singer.TryGetMappedOto(test, note.tone + shift, color, out var otoCandidacy)) {
                     otos.Add(otoCandidacy);
                 }
             }
@@ -135,7 +137,9 @@ private bool checkOtoUntilHitVc(string[] input, Note note, out UOto oto) {
 
             var otos = new List<UOto>();
             foreach (string test in input) {
-                if (singer.TryGetMappedOto(test + alt, note.tone + shift, color, out var otoCandidacy)) {
+                if (singer.TryGetMappedOto(test + alt, note.tone + shift, color, out var otoAlt)) {
+                    otos.Add(otoAlt);
+                } else if (singer.TryGetMappedOto(test, note.tone + shift, color, out var otoCandidacy)) {
                     otos.Add(otoCandidacy);
                 }
             }
diff --git a/OpenUtau.Plugin.Builtin/JapanesePresampPhonemizer.cs b/OpenUtau.Plugin.Builtin/JapanesePresampPhonemizer.cs
index 648fcd414..424fb0720 100644
--- a/OpenUtau.Plugin.Builtin/JapanesePresampPhonemizer.cs
+++ b/OpenUtau.Plugin.Builtin/JapanesePresampPhonemizer.cs
@@ -340,7 +340,9 @@ private bool checkOtoUntilHit(List<string> input, Note note, out UOto oto) {
 
             var otos = new List<UOto>();
             foreach (string test in input) {
-                if (singer.TryGetMappedOto(test + alt, note.tone + shift, color, out var otoCandidacy)) {
+                if (singer.TryGetMappedOto(test + alt, note.tone + shift, color, out var otoAlt)) {
+                    otos.Add(otoAlt);
+                } else if (singer.TryGetMappedOto(test, note.tone + shift, color, out var otoCandidacy)) {
                     otos.Add(otoCandidacy);
                 }
             }
@@ -365,7 +367,9 @@ private bool checkOtoUntilHit(List<string> input, Note note, int index, out UOto
 
             var otos = new List<UOto>();
             foreach (string test in input) {
-                if (singer.TryGetMappedOto(test + alt, note.tone + shift, color, out var otoCandidacy)) {
+                if (singer.TryGetMappedOto(test + alt, note.tone + shift, color, out var otoAlt)) {
+                    otos.Add(otoAlt);
+                } else if (singer.TryGetMappedOto(test, note.tone + shift, color, out var otoCandidacy)) {
                     otos.Add(otoCandidacy);
                 }
             }
diff --git a/OpenUtau.Plugin.Builtin/JapaneseVCVPhonemizer.cs b/OpenUtau.Plugin.Builtin/JapaneseVCVPhonemizer.cs
index 281075fd1..08c06dc60 100644
--- a/OpenUtau.Plugin.Builtin/JapaneseVCVPhonemizer.cs
+++ b/OpenUtau.Plugin.Builtin/JapaneseVCVPhonemizer.cs
@@ -96,7 +96,9 @@ private bool CheckOtoUntilHit(string[] input, Note note, out UOto oto) {
 
             var otos = new List<UOto>();
             foreach (string test in input) {
-                if (singer.TryGetMappedOto(test + alt, note.tone + shift, color, out var otoCandidacy)) {
+                if (singer.TryGetMappedOto(test + alt, note.tone + shift, color, out var otoAlt)) {
+                    otos.Add(otoAlt);
+                } else if (singer.TryGetMappedOto(test, note.tone + shift, color, out var otoCandidacy)) {
                     otos.Add(otoCandidacy);
                 }
             }
diff --git a/OpenUtau.Plugin.Builtin/KOtoJAPhonemizer.cs b/OpenUtau.Plugin.Builtin/KOtoJAPhonemizer.cs
index a85e5f680..2defa7e38 100644
--- a/OpenUtau.Plugin.Builtin/KOtoJAPhonemizer.cs
+++ b/OpenUtau.Plugin.Builtin/KOtoJAPhonemizer.cs
@@ -477,7 +477,9 @@ public override Result Process(Note[] notes, Note? prev, Note? next, Note? prevN
                         }
                     }
                     // Map alias (apply shift + color)
-                    if (singer.TryGetMappedOto(currPhoneme + alt, note.tone + shift, color, out var oto)) {
+                    if (singer.TryGetMappedOto(currPhoneme + alt, note.tone + shift, color, out var otoAlt)) {
+                        currPhoneme = otoAlt.Alias;
+                    } else if (singer.TryGetMappedOto(currPhoneme, note.tone + shift, color, out var oto)) {
                         currPhoneme = oto.Alias;
                     }
 
@@ -677,7 +679,9 @@ public override Result Process(Note[] notes, Note? prev, Note? next, Note? prevN
                         if (substituteLookup.TryGetValue(consonant ?? string.Empty, out con)) {
                             vcPhonemes[1] = $"{prevConnect} {con}";
                         }
-                        if (singer.TryGetMappedOto(currPhoneme + alt1, note.tone + shift1, color1, out var oto0)) {
+                        if (singer.TryGetMappedOto(currPhoneme + alt1, note.tone + shift1, color1, out var otoAlt)) {
+                            currPhoneme = otoAlt.Alias;
+                        } else if (singer.TryGetMappedOto(currPhoneme, note.tone + shift1, color1, out var oto0)) {
                             currPhoneme = oto0.Alias;
                         }
                         string secondPhoneme = (currIMF[1][0] == 'w' || currIMF[1][0] == 'y') ? currIMF[1].Remove(0, 1) : currIMF[1];
@@ -739,13 +743,19 @@ public override Result Process(Note[] notes, Note? prev, Note? next, Note? prevN
                             int noteLength = 0;
                             for (int i = 0; i < notes.Length; i++) noteLength += notes[i].duration;
                             int secondPosition = Math.Max(noteLength - (nextNeighbour == null ? 120 : 180), noteLength / 2);
-                            if (singer.TryGetMappedOto(currPhoneme + alt1, note.tone + shift1, color1, out oto0)) {
+                            if (singer.TryGetMappedOto(currPhoneme + alt1, note.tone + shift1, color1, out var otoAlt0)) {
+                                currPhoneme = otoAlt0.Alias;
+                            } else if (singer.TryGetMappedOto(currPhoneme, note.tone + shift1, color1, out var oto0)) {
                                 currPhoneme = oto0.Alias;
                             }
-                            if (singer.TryGetMappedOto(vcPhoneme ?? vcPhonemes[1] ?? string.Empty + alt, prevNeighbour.Value.tone + shift, color, out var otoVc)) {
+                            if (singer.TryGetMappedOto(vcPhoneme ?? vcPhonemes[1] ?? string.Empty + alt, prevNeighbour.Value.tone + shift, color, out var otoVcAlt)) {
+                                vcPhoneme = otoVcAlt.Alias;
+                            } else if (singer.TryGetMappedOto(vcPhoneme ?? vcPhonemes[1] ?? string.Empty, prevNeighbour.Value.tone + shift, color, out var otoVc)) {
                                 vcPhoneme = otoVc.Alias;
                             }
-                            if (singer.TryGetMappedOto(secondPhoneme + alt2, note.tone + shift2, color2, out var oto3)) {
+                            if (singer.TryGetMappedOto(secondPhoneme + alt2, note.tone + shift2, color2, out var otoAlt3)) {
+                                secondPhoneme = otoAlt3.Alias;
+                            } else if (singer.TryGetMappedOto(secondPhoneme, note.tone + shift2, color2, out var oto3)) {
                                 secondPhoneme = oto3.Alias;
                             }
                             if (singer.TryGetMappedOto(vcPhoneme, note.tone + shift, color, out _)
@@ -794,7 +804,9 @@ public override Result Process(Note[] notes, Note? prev, Note? next, Note? prevN
             if (string.IsNullOrEmpty(currIMF[2])) {
 
                 // Map alias (apply shift + color)
-                if (singer.TryGetMappedOto(currPhoneme + alt, note.tone + shift, color, out var oto)) {
+                if (singer.TryGetMappedOto(currPhoneme + alt, note.tone + shift, color, out var otoAlt)) {
+                    currPhoneme = otoAlt.Alias;
+                } else if (singer.TryGetMappedOto(currPhoneme, note.tone + shift, color, out var oto)) {
                     currPhoneme = oto.Alias;
                 }
                 return new Result {
@@ -863,10 +875,14 @@ public override Result Process(Note[] notes, Note? prev, Note? next, Note? prevN
                 for (int i = 0; i < notes.Length; i++) noteLength += notes[i].duration;
                 int secondPosition = Math.Max(noteLength - (nextNeighbour == null ? 120 : 180), noteLength / 2);
                 // Map alias (apply shift + color)
-                if (singer.TryGetMappedOto(currPhoneme + alt, note.tone + shift, color, out var oto)) {
+                if (singer.TryGetMappedOto(currPhoneme + alt, note.tone + shift, color, out var otoAlt)) {
+                    currPhoneme = otoAlt.Alias;
+                } else if (singer.TryGetMappedOto(currPhoneme, note.tone + shift, color, out var oto)) {
                     currPhoneme = oto.Alias;
                 }
-                if (singer.TryGetMappedOto(secondPhoneme + alt1, note.tone + shift1, color1, out oto)) {
+                if (singer.TryGetMappedOto(secondPhoneme + alt1, note.tone + shift1, color1, out var otoalt)) {
+                    secondPhoneme = otoalt.Alias;
+                } else if (singer.TryGetMappedOto(secondPhoneme, note.tone + shift1, color1, out var oto)) {
                     secondPhoneme = oto.Alias;
                 }
                 // Return Result
diff --git a/OpenUtau.Plugin.Builtin/KoreanVCVPhonemizer.cs b/OpenUtau.Plugin.Builtin/KoreanVCVPhonemizer.cs
index 2bbcfbff3..0fdbcf71c 100644
--- a/OpenUtau.Plugin.Builtin/KoreanVCVPhonemizer.cs
+++ b/OpenUtau.Plugin.Builtin/KoreanVCVPhonemizer.cs
@@ -208,7 +208,9 @@ public override Result Process(Note[] notes, Note? prev, Note? next, Note? prevN
 					}
 
 					// Map alias (apply shift + color)
-                    if (singer.TryGetMappedOto(currPhoneme + alt, note.tone + shift, color, out var oto)) {
+					if (singer.TryGetMappedOto(currPhoneme + alt, note.tone + shift, color, out var otoAlt)) {
+						currPhoneme = otoAlt.Alias;
+					} else if (singer.TryGetMappedOto(currPhoneme, note.tone + shift, color, out var oto)) {
 						currPhoneme = oto.Alias;
 					}
 
@@ -295,7 +297,9 @@ public override Result Process(Note[] notes, Note? prev, Note? next, Note? prevN
 			if (string.IsNullOrEmpty(currIMF[2]))
 			{
 				// Map alias (apply shift + color)
-                if (singer.TryGetMappedOto(currPhoneme + alt, note.tone + shift, color, out var oto)) {
+				if (singer.TryGetMappedOto(currPhoneme + alt, note.tone + shift, color, out var otoAlt)) {
+					currPhoneme = otoAlt.Alias;
+				} else if (singer.TryGetMappedOto(currPhoneme, note.tone + shift, color, out var oto)) {
 					currPhoneme = oto.Alias;
 				}
 
@@ -337,11 +341,15 @@ public override Result Process(Note[] notes, Note? prev, Note? next, Note? prevN
 				int secondPosition = Math.Max(noteLength - (nextNeighbour == null ? 120 : 180), noteLength / 2);
 
 				// Map alias (apply shift + color)
-                if (singer.TryGetMappedOto(currPhoneme + alt, note.tone + shift, color, out var oto)) {
+				if (singer.TryGetMappedOto(currPhoneme + alt, note.tone + shift, color, out var otoAlt)) {
+					currPhoneme = otoAlt.Alias;
+				} else if (singer.TryGetMappedOto(currPhoneme, note.tone + shift, color, out var oto)) {
 					currPhoneme = oto.Alias;
 				}
 
-                if (singer.TryGetMappedOto(secondPhoneme + alt1, note.tone + shift1, color1, out oto)) {
+				if (singer.TryGetMappedOto(secondPhoneme + alt1, note.tone + shift1, color1, out var otoAlt1)) {
+					secondPhoneme = otoAlt1.Alias;
+				} else if (singer.TryGetMappedOto(secondPhoneme, note.tone + shift1, color1, out var oto)) {
 					secondPhoneme = oto.Alias;
 				}
 
diff --git a/OpenUtau.Plugin.Builtin/TurkishCVVCPhonemizer.cs b/OpenUtau.Plugin.Builtin/TurkishCVVCPhonemizer.cs
index d4a4f555c..4be80f1ca 100644
--- a/OpenUtau.Plugin.Builtin/TurkishCVVCPhonemizer.cs
+++ b/OpenUtau.Plugin.Builtin/TurkishCVVCPhonemizer.cs
@@ -27,7 +27,9 @@ private bool checkOtoUntilHit(string[] input, Note note, out UOto oto) {
 
             var otos = new List<UOto>();
             foreach (string test in input) {
-                if (singer.TryGetMappedOto(test + alt, note.tone + shift, color, out var otoCandidacy)) {
+                if (singer.TryGetMappedOto(test + alt, note.tone + shift, color, out var otoAlt)) {
+                    otos.Add(otoAlt);
+                } else if (singer.TryGetMappedOto(test, note.tone + shift, color, out var otoCandidacy)) {
                     otos.Add(otoCandidacy);
                 }
             }