MKON-136 My cute playhood friend, who has an expressionless face, asked me, "I have a boyfriend, so I'd like you to help me practice sex." - Mochizuki Tsubomi - Tsubomi Mochizuki

Reiji has always been at the mercy of his childhood friend, Mochizuki Tsubomi, who is expressionless and whose thoughts are hard to decipher. Suddenly, she asks him to be her sex practice partner because she has a boyfriend. Reiji, who has feelings for Tsubomi, has no reason to refuse and agrees to practice sex with her. However, she has a personal rule that "kissing is only allowed with someone you love," and won't let him kiss her. She remains expressionless the whole time...