Iya na Kao Sare Nagara wo Pantsu Misete Moraitai Manga

Focuses on a boy who wants nothing more than for his classmate to show her panties to him. When he helps her with a video game she’s having trouble with, she offers to give him a present, anything he wants. Naturally, he asks her to show her panties to him, which utterly repels her, though she eventually agrees, lifting her skirt while showing him a disgusted face. Source: J18