WIP: Currently I'm not sure how to do it

scenes/characters/blue/dummy.gd

@@ -1,8 +1,11 @@
 extends Node3D
 
 
+var owner_placeholder: CharacterBody3D = null
 # Called when the node enters the scene tree for the first time.
 func _ready() -> void:
+	print("ready")
+	owner_placeholder = _get_owner()
 	pass # Replace with function body.
 
 
@@ -12,5 +15,12 @@ func _process(delta: float) -> void:
 
 
 func _on_head_collision_body_part_hit(dam: Variant) -> void:
-	print("head is hit")
+	print("head is hit" + str(dam))
+	
+	owner_placeholder.take_damage(dam)
 	pass # Replace with function body.
+
+func _get_owner() -> CharacterBody3D:
+	var owner_placeholder := find_parent("CharacterPlaceholder")
+	return owner_placeholder
+	

scenes/characters/blue/head_collision.gd

@@ -4,10 +4,10 @@ extends Area3D
 
 signal body_part_hit(dam)
 # Called when the node enters the scene tree for the first time.
+
 func _ready() -> void:
 	pass # Replace with function body.
 
-
 # Called every frame. 'delta' is the elapsed time since the previous frame.
 func _process(delta: float) -> void:
 	pass