diff --git a/music_quiz/data/mq/function/repeat/buttons/btn.mcfunction b/music_quiz/data/mq/function/repeat/buttons/btn.mcfunction
index d5c0805..dafe1c1 100644
--- a/music_quiz/data/mq/function/repeat/buttons/btn.mcfunction
+++ b/music_quiz/data/mq/function/repeat/buttons/btn.mcfunction
@@ -51,25 +51,25 @@ $execute if score $(n) buttons matches -1 run kill @e[type=minecraft:text_displa
 
 # south: 깊이축=z(+0.0625), 가로축=x, 3 타일 + 라벨
 $execute if score $(n) buttons matches -1 if data storage mq:tmp btn{f:"south"} positioned $(x) $(y) $(z) run summon minecraft:interaction ~0.375 ~0.375 ~0.0625 {Tags:["mq","$(n)"],width:0.125f,height:0.25f,response:0b}
-$execute if score $(n) buttons matches -1 if data storage mq:tmp btn{f:"south"} positioned $(x) $(y) $(z) run summon minecraft:interaction ~0.5   ~0.375 ~0.0625 {Tags:["mq","$(n)"],width:0.125f,height:0.25f,response:0b}
+$execute if score $(n) buttons matches -1 if data storage mq:tmp btn{f:"south"} positioned $(x) $(y) $(z) run summon minecraft:interaction ~0.5 ~0.375 ~0.0625 {Tags:["mq","$(n)"],width:0.125f,height:0.25f,response:0b}
 $execute if score $(n) buttons matches -1 if data storage mq:tmp btn{f:"south"} positioned $(x) $(y) $(z) run summon minecraft:interaction ~0.625 ~0.375 ~0.0625 {Tags:["mq","$(n)"],width:0.125f,height:0.25f,response:0b}
 $execute if score $(n) buttons matches -1 unless data storage mq:tmp btn{label:""} if data storage mq:tmp btn{f:"south"} positioned $(x) $(y) $(z) run summon minecraft:text_display ~0.5 ~-1 ~0.01 {Tags:["mq","$(n)"],Rotation:[0f,0f],background:0,text:'{"text":"$(label)","color":"$(label_color)","font":"$(label_font)"}',transformation:{scale:[$(label_scale)f,$(label_scale)f,$(label_scale)f],translation:[0f,0f,0f],left_rotation:[0f,0f,0f,1f],right_rotation:[0f,0f,0f,1f]}}
 
 # north: 깊이축=z(+0.9375), 가로축=x, 3 타일 + 라벨
 $execute if score $(n) buttons matches -1 if data storage mq:tmp btn{f:"north"} positioned $(x) $(y) $(z) run summon minecraft:interaction ~0.375 ~0.375 ~0.9375 {Tags:["mq","$(n)"],width:0.125f,height:0.25f,response:0b}
-$execute if score $(n) buttons matches -1 if data storage mq:tmp btn{f:"north"} positioned $(x) $(y) $(z) run summon minecraft:interaction ~0.5   ~0.375 ~0.9375 {Tags:["mq","$(n)"],width:0.125f,height:0.25f,response:0b}
+$execute if score $(n) buttons matches -1 if data storage mq:tmp btn{f:"north"} positioned $(x) $(y) $(z) run summon minecraft:interaction ~0.5 ~0.375 ~0.9375 {Tags:["mq","$(n)"],width:0.125f,height:0.25f,response:0b}
 $execute if score $(n) buttons matches -1 if data storage mq:tmp btn{f:"north"} positioned $(x) $(y) $(z) run summon minecraft:interaction ~0.625 ~0.375 ~0.9375 {Tags:["mq","$(n)"],width:0.125f,height:0.25f,response:0b}
 $execute if score $(n) buttons matches -1 unless data storage mq:tmp btn{label:""} if data storage mq:tmp btn{f:"north"} positioned $(x) $(y) $(z) run summon minecraft:text_display ~0.5 ~-1 ~0.99 {Tags:["mq","$(n)"],Rotation:[180f,0f],background:0,text:'{"text":"$(label)","color":"$(label_color)","font":"$(label_font)"}',transformation:{scale:[$(label_scale)f,$(label_scale)f,$(label_scale)f],translation:[0f,0f,0f],left_rotation:[0f,0f,0f,1f],right_rotation:[0f,0f,0f,1f]}}
 
 # east: 깊이축=x(+0.0625), 가로축=z, 3 타일 + 라벨
 $execute if score $(n) buttons matches -1 if data storage mq:tmp btn{f:"east"} positioned $(x) $(y) $(z) run summon minecraft:interaction ~0.0625 ~0.375 ~0.375 {Tags:["mq","$(n)"],width:0.125f,height:0.25f,response:0b}
-$execute if score $(n) buttons matches -1 if data storage mq:tmp btn{f:"east"} positioned $(x) $(y) $(z) run summon minecraft:interaction ~0.0625 ~0.375 ~0.5   {Tags:["mq","$(n)"],width:0.125f,height:0.25f,response:0b}
+$execute if score $(n) buttons matches -1 if data storage mq:tmp btn{f:"east"} positioned $(x) $(y) $(z) run summon minecraft:interaction ~0.0625 ~0.375 ~0.5 {Tags:["mq","$(n)"],width:0.125f,height:0.25f,response:0b}
 $execute if score $(n) buttons matches -1 if data storage mq:tmp btn{f:"east"} positioned $(x) $(y) $(z) run summon minecraft:interaction ~0.0625 ~0.375 ~0.625 {Tags:["mq","$(n)"],width:0.125f,height:0.25f,response:0b}
 $execute if score $(n) buttons matches -1 unless data storage mq:tmp btn{label:""} if data storage mq:tmp btn{f:"east"} positioned $(x) $(y) $(z) run summon minecraft:text_display ~0.01 ~-1 ~0.5 {Tags:["mq","$(n)"],Rotation:[-90f,0f],background:0,text:'{"text":"$(label)","color":"$(label_color)","font":"$(label_font)"}',transformation:{scale:[$(label_scale)f,$(label_scale)f,$(label_scale)f],translation:[0f,0f,0f],left_rotation:[0f,0f,0f,1f],right_rotation:[0f,0f,0f,1f]}}
 
 # west: 깊이축=x(+0.9375), 가로축=z, 3 타일 + 라벨
 $execute if score $(n) buttons matches -1 if data storage mq:tmp btn{f:"west"} positioned $(x) $(y) $(z) run summon minecraft:interaction ~0.9375 ~0.375 ~0.375 {Tags:["mq","$(n)"],width:0.125f,height:0.25f,response:0b}
-$execute if score $(n) buttons matches -1 if data storage mq:tmp btn{f:"west"} positioned $(x) $(y) $(z) run summon minecraft:interaction ~0.9375 ~0.375 ~0.5   {Tags:["mq","$(n)"],width:0.125f,height:0.25f,response:0b}
+$execute if score $(n) buttons matches -1 if data storage mq:tmp btn{f:"west"} positioned $(x) $(y) $(z) run summon minecraft:interaction ~0.9375 ~0.375 ~0.5 {Tags:["mq","$(n)"],width:0.125f,height:0.25f,response:0b}
 $execute if score $(n) buttons matches -1 if data storage mq:tmp btn{f:"west"} positioned $(x) $(y) $(z) run summon minecraft:interaction ~0.9375 ~0.375 ~0.625 {Tags:["mq","$(n)"],width:0.125f,height:0.25f,response:0b}
 $execute if score $(n) buttons matches -1 unless data storage mq:tmp btn{label:""} if data storage mq:tmp btn{f:"west"} positioned $(x) $(y) $(z) run summon minecraft:text_display ~0.99 ~-1 ~0.5 {Tags:["mq","$(n)"],Rotation:[90f,0f],background:0,text:'{"text":"$(label)","color":"$(label_color)","font":"$(label_font)"}',transformation:{scale:[$(label_scale)f,$(label_scale)f,$(label_scale)f],translation:[0f,0f,0f],left_rotation:[0f,0f,0f,1f],right_rotation:[0f,0f,0f,1f]}}
 
diff --git a/music_quiz/data/mq/function/repeat/buttons/btn_prep.mcfunction b/music_quiz/data/mq/function/repeat/buttons/btn_prep.mcfunction
index 649413d..8b0a101 100644
--- a/music_quiz/data/mq/function/repeat/buttons/btn_prep.mcfunction
+++ b/music_quiz/data/mq/function/repeat/buttons/btn_prep.mcfunction
@@ -1,13 +1,13 @@
 # 한 button entry 의 optional 필드 기본값을 채워 macro 호출 시 $(arg) 미존재
 # 에러를 방지한다. handler 에서 entry 복사 직후 호출.
 #
-# label        : 없으면 "" (빈 문자열) → btn 안의 text_display 분기는 label
+# label        : 없으면 "" (빈 문자열) -> btn 안의 text_display 분기는 label
 #                이 "" 이면 스킵.
 # label_color  : 기본 "black"
 # label_font   : 기본 "minecraft:default"
 # label_scale  : 기본 "1.0"  (Vector3f 의 한 축, 3축 동일하게 사용됨)
 
-execute unless data storage mq:tmp btn.label       run data modify storage mq:tmp btn.label       set value ""
+execute unless data storage mq:tmp btn.label run data modify storage mq:tmp btn.label set value ""
 execute unless data storage mq:tmp btn.label_color run data modify storage mq:tmp btn.label_color set value "black"
-execute unless data storage mq:tmp btn.label_font  run data modify storage mq:tmp btn.label_font  set value "minecraft:default"
+execute unless data storage mq:tmp btn.label_font run data modify storage mq:tmp btn.label_font set value "minecraft:default"
 execute unless data storage mq:tmp btn.label_scale run data modify storage mq:tmp btn.label_scale set value "1.0"