diff --git a/TheSkyBlessing/data/lib/functions/motion/_index.d.mcfunction b/TheSkyBlessing/data/lib/functions/motion/_index.d.mcfunction
index 2dd0cee3a2..5bce948782 100644
--- a/TheSkyBlessing/data/lib/functions/motion/_index.d.mcfunction
+++ b/TheSkyBlessing/data/lib/functions/motion/_index.d.mcfunction
@@ -4,6 +4,7 @@
 #> Val
 # @within function lib:motion/core/*/*
     #declare score_holder $VectorMagnitude
+    #declare score_holder $VectorSquared
     #declare score_holder $KnockbackResist
 
 #> api
diff --git a/TheSkyBlessing/data/lib/functions/motion/core/looking/.mcfunction b/TheSkyBlessing/data/lib/functions/motion/core/looking/.mcfunction
index fb683728af..9f3cbce8e1 100644
--- a/TheSkyBlessing/data/lib/functions/motion/core/looking/.mcfunction
+++ b/TheSkyBlessing/data/lib/functions/motion/core/looking/.mcfunction
@@ -12,8 +12,8 @@
     execute if data storage lib: Argument{KnockbackResist:1b} run function lib:motion/core/looking/knockback_resistance
 
 # 適用
-    execute if entity @s[type=player] run function lib:motion/core/looking/player
-    execute if entity @s[type=!player,tag=!Uninterferable] run function lib:motion/core/looking/non-player
+    execute if entity @s[type=player] unless score $VectorMagnitude Temporary matches 0 run function lib:motion/core/looking/player
+    execute if entity @s[type=!player,tag=!Uninterferable] unless score $VectorMagnitude Temporary matches 0 run function lib:motion/core/looking/non-player
 
 # リセット
     scoreboard players reset $VectorMagnitude Temporary
diff --git a/TheSkyBlessing/data/lib/functions/motion/core/looking/non-player.mcfunction b/TheSkyBlessing/data/lib/functions/motion/core/looking/non-player.mcfunction
index fe183241f2..977cf6c07d 100644
--- a/TheSkyBlessing/data/lib/functions/motion/core/looking/non-player.mcfunction
+++ b/TheSkyBlessing/data/lib/functions/motion/core/looking/non-player.mcfunction
@@ -15,18 +15,18 @@
 
 # 演算処理
     data modify storage lib: Pos set from entity 0-0-0-0-0 Pos
-    execute store result score $VectorX Temporary run data get storage lib: Pos[0] 10
-    execute store result score $VectorY Temporary run data get storage lib: Pos[1] 10
-    execute store result score $VectorZ Temporary run data get storage lib: Pos[2] 10
+    execute store result score $VectorX Temporary run data get storage lib: Pos[0] 1000
+    execute store result score $VectorY Temporary run data get storage lib: Pos[1] 1000
+    execute store result score $VectorZ Temporary run data get storage lib: Pos[2] 1000
 
     scoreboard players operation $VectorX Temporary *= $VectorMagnitude Temporary
     scoreboard players operation $VectorY Temporary *= $VectorMagnitude Temporary
     scoreboard players operation $VectorZ Temporary *= $VectorMagnitude Temporary
 
 # 適用
-    execute store result storage lib: Pos[0] double 0.00001 run scoreboard players get $VectorX Temporary
-    execute store result storage lib: Pos[1] double 0.00001 run scoreboard players get $VectorY Temporary
-    execute store result storage lib: Pos[2] double 0.00001 run scoreboard players get $VectorZ Temporary
+    execute store result storage lib: Pos[0] double 0.0000001 run scoreboard players get $VectorX Temporary
+    execute store result storage lib: Pos[1] double 0.0000001 run scoreboard players get $VectorY Temporary
+    execute store result storage lib: Pos[2] double 0.0000001 run scoreboard players get $VectorZ Temporary
     data modify entity @s Motion set from storage lib: Pos
 
 # リセット
diff --git a/TheSkyBlessing/data/lib/functions/motion/core/xyz/.mcfunction b/TheSkyBlessing/data/lib/functions/motion/core/xyz/.mcfunction
index 13d5f29764..39aa5323e3 100644
--- a/TheSkyBlessing/data/lib/functions/motion/core/xyz/.mcfunction
+++ b/TheSkyBlessing/data/lib/functions/motion/core/xyz/.mcfunction
@@ -8,9 +8,19 @@
     execute if data storage lib: Argument{KnockbackResist:1b} store result score $KnockbackResist Temporary run attribute @s generic.knockback_resistance get 100
     execute if data storage lib: Argument{KnockbackResist:1b} run function lib:motion/core/xyz/knockback_resistance
 
+# ベクトルの大きさ（の2乗）を取得する
+    function lib:array/session/open
+    data modify storage lib: Array set from storage lib: Argument.Vector
+    function lib:array/math/sqr
+    data modify storage lib: Array set from storage lib: SqrResult
+    function lib:array/math/sum
+    execute store result score $VectorSquared Temporary run data get storage lib: SumResult 10000
+    function lib:array/session/close
+
 # 適用
-    execute if entity @s[type=player] run function lib:motion/core/xyz/player
-    execute if entity @s[type=!player,tag=!Uninterferable] run data modify entity @s Motion set from storage lib: Argument.Vector
+    execute if entity @s[type=player] unless score $VectorSquared Temporary matches 0 run function lib:motion/core/xyz/player
+    execute if entity @s[type=!player,tag=!Uninterferable] unless score $VectorSquared Temporary matches 0 run data modify entity @s Motion set from storage lib: Argument.Vector
 
 # リセット
+    scoreboard players reset $VectorSquared Temporary
     scoreboard players reset $KnockbackResist Temporary