【SeaSky/Shirikage】I’m in a sisterhood with my two cousins for a reason.

[synopsis]
I’ve been working for a major corporation for five years, and I’m in my fifth year of working in the information technology department.
The story is based on a true story of a young man who is in a relationship with his cousin, Kana Shikura, who lives with him.
Kana’s younger sister, Butu Shikura, lost her virginity to Kana before they started dating.

Sisters, girlfriends and boyfriends, living with them is a lot of work. ……

One day, I went on a double date with these sisters for some reason …… and we ended up having a bowl of rice with them.