Koichi is the eldest son of Kanda family, having sexual relationship with his mother, older sister, and young sister.
This manga is in full color and translated !
The chap 4 & 5 will be translated soon =).
botepuri 1
botepuri 2
botepuri 3
botepuri 4
botepuri 5
And i'm gonna add here the decensored version =)
Botepuri 1 Decensored
Botepuri 2 Decensored