SDAB-221 The third-year, third-class student Seri Saeba is really interested in sex, so she decided to consult a male friend she's known since childhood.

During break time, a girl in my class is talking about sex with her university student boyfriend. The story is too stimulating for Mitsuha. What is "Iku"? Excited, Mitsuha masturbates in the bathroom during lunch break. She is Takashi, a childhood friend who passes by in the hallway. We live close by and have been together since kindergarten. I boldly tried to talk to him, "Do you have any plans after school today? Can I go play at Takashi's house?"