Character controller collision problem

I tried to make a simple moving with character controller, but the player is not a capsule so i made another box collider attached with player object and add it in children. Like in this photo, but box collider doesn´t function. I try to find any possible how can i use character controller and box collider.

CharacterController doesn’t work that way. It only counts its own capsule and simulate physics in a weaker way so that it saves workload.
You should use Rigidbody. you can set the rigidbody’s value “isKinematic” as true if you want it less realistic.