Cat's Cradle

Mizuki has been dating her boyfriend for half a year. However, they have only held hands, and Mizuki is troubled by the lack of progress. Her tutor points out that her grades have been slipping due to her worries, and she decides to confide her problems to him. The tutor asks Mizuki to "practice" so that she can act on her own, and what was supposed to be just "practice" ends up forcing her to take her first kiss. Since then, she has been masturbating every time she remembers the sensation of the kiss. Finally, she succeeds in kissing her long-awaited boyfriend, but...

(Source: Melonbooks, translated)

1. vol.1; Comic Market 94
2. vol.2; Comic Market 95
3. vol.3; Comic Market 96
4. vol.3.5; Comic Market 98
5. vol.4; GW Cho Dojinsai
6. Mizuki After Story (瑞希アフターストーリー); kakioroshi in "Itomusubi Soushuuhen" released at Comic Market 99