18. One Punch Man
Story about Saitama a superhero who defeats his opponents with a single punch. He does get bored with this ability to defeat anyone with a single punch. There is the Hero Association who later takes in Saitama and Genos who is Saitama student. There is another association called the Monster Association who wants to get rid of Hero Association. This is a monster and hero fighting show, and Saitama is in the middle of it all.