Isei suffers from a disease that makes his penis small and his only option for treatment is prostate massage. This give origin to Isei asks to his best friend since childhood, Kento, to give him a hand and, even when he refuses at first,as he's been rooting for Isei and his career as an athlete, he decides to help him.
This was really cute. At the begining it seems unrealistic and kind of stupid but, it's good the way their relationship develops.
Shinyuu tte Soko Made Shinakucha Ikenai No?