Secret XXX
Complete | Hinohara Meguru | 2016 released
Kedamono Arashi - Kiss Me Baby! -
Complete | kuroi morry | 2019 released
Sequel with another couples story.
Sayonara Alpha Extra Edition
Complete | Ichinashi Kimi | 2000 released
Ngl, the original one kinda weird too, but later on it’s okay
Ookami-kun wa hanasanai
Complete | Sakura rico,Sakura riko | 2019 released
You should read the first one.
K-Sensei no Himitsu no Netsujou