First of all, congratulations to "One Punch Man" for its October TV release. The male protagonist Saitama and the female protagonist are Grimmjow (the God of Death) whose gender has changed (￢3￢).
On the day of time travel, Grimmjow discovered that not only did he have an extra mouth and two big balls, but his right hand also suffered from a strange disease that "if you don't touch the bald gourd, it will break off and die."
So touching Saitama's bald penis every day became his daily routine.