

一緒でいい一緒がいい
A pair of twins that compete in anything from school grades to who gets to use the toilet first. And now who can ejaculate last! (Source: MU)
Issho de Ii, Issho ga Ii has 1 chapters.
Issho de Ii, Issho ga Ii is currently finished.
Issho de Ii, Issho ga Ii was written by Kyousuke Shima.
Issho de Ii, Issho ga Ii was published 2005.