Unlimited anime worlds

Our Mc is one the anime lovers that watch anime as relaxation or other reasons. But he has a secret that he is a person who just wanted to become stronger. His father is a hitman and his mother is also a hitman so he job he has when he grew up is a hitman that take human life by getting paid. The childhood life of his is not very good to remember as his childhood life passed as his father and mother trained him to become stronger and stronger. One day, his father and his mother died in one of the missions. That mission is just a trap set up for them from their enemy. After took revenge for his parents, he died from the bullet of his enemy.