Katsuo doesn't remember much, besides the pain. He was born with an unknown disease, which effected his growth and put him in the hospital as his heart and body slowly decayed. He died during surgery, only to wake up in a concrete cube. A goddess came unto him and offered him rebirth - a life without the sickness that had ruined his childhood. He accepted, and was reborn into a world of heroes and villains with a system tailored to his deepest desires. Can he find happiness in this world?