How to use Collision without any sphere or box component

Hi,

I have two characters.

  1. MyCharacter
  2. Enemy

MyCharacter has weapon with StaticMesh component.

But the problem is because I need to add Sphere Collision if wants to display print string after overlap Enemy.

How can I used overlap after overlap character enemy? I used a lot of different collision settings, but still I don’t know how to find this solution.