Koshimizu Sachiko
Number of masturbation: 6 times a week
Favorite position: Missionary
★She thinks that her large areolas are cute.
Air can easily go inside her vagina so she releases gases very often.

Shirasaka Koume
Number of masturbation: 5 times a week
Favorite position: Dogstyle
★Has inverted nipples. Taught by everyone at work on how to masturbate. She's still not that sensitive but she can cum.

Hoshi Shouko
Number of masturbation: 7 times a week
Favorite position: Cowgirl
★ Likes kissing. Has puffy nipples. She usually goes to work without wearing any bra so her nipples are always chafed and weakened.