Plot Summary

Nanami, a sister-in-law who left home after fighting with her brother, came to our house! Eh, you're here for 10 days...! ? Even though it's family, I can't stand it if I leave the house looking defenseless like that...! ! "Let's take a bath together, shall we? That... Chi ○ Chin's grown up... Suck it up, isn't it?" "Have you ever had sex with a girl? Then why don't you try being your sister-in-law?" Virgin SEX! !