Well, it's a full tank made of 10 independent chapters so there's quite a collection of material in there. There's some vanilla, some torture, some BDSM with black-mailing, some anal, hints of lesbianism and even shota.
3. Finder Goshi no Kimi
4. Benkyou suru yori Baka ni Naru
7. Bishoujo Tantei Chouraku no Kiki
10. Meitei Free Time