Bokura no Hikari Club
prequel of litchi hikari club
Chou to Kumo no Su
chouno's past. he lives with his mother's lover after she passed away from sickness. the mom and the guy were partners for a SM show...but things start to change when uncle fear that chouno will leave him one day.
I: Episode 0
this is a sequel and prequel and spinoff (a parallel world). 1-3. prequell abut I or before he became itou san. he was raised by a richman and as a hitman. taught about sexual pleasure and learn how to fake smile to survive. he evven met kyousuke when he was just 5! poor kyousoke!!!! forced to already have sex at 5. 4. takes place 5 years after the event. they finally went to an island. 5. parallel world where kyousoke is a student and itou is a teaccher. 4---extra about living together and proposing for the rest of their lives.
Barairo no Hoo no Koro