Ore no Himekutsu o Haite Kure - Vol. 2 Ch. 10 - Step 010 - I Want to Experience

[MangaDex]

 

[Kaarme]

If you think about it, it was Seki who left him, yet now she's all the time calling back, visiting him, or even inviting him out to cafes and trying to tempt him to have sex with her. Yet while she's doing all that, she also has a new boyfriend. Dude was really lucky she left him, but he should put a stop to any further interaction.