Kusatta Rasen
Part of "Rakuda Tsukai To Ouji No Yoru" ch5
continuation ch6
Ibitsu no Kakera
Prequel: https://myreadingmanga.info/ogawa-chise-ibitsu-na-kakera-14-sai-distorted-pieces-fourteen-cn-eng-tran/ (only translated, not typesetted)
Part of "Rakuda Tsukai To Ouji No Yoru" ch4
continuation ch6
Junjou Minimum
This are extra chapters from Junjou Romantica
Sekaiichi Hatsukoi - Yukina Kou No Baai
Ore no Ushiro ni Tatsu na!!
ch1-4, 7.5 - detective
ch5-6 - older broxbro's friend
ch7 - bdsm, porn star
Choco Strawberry Vanilla
Psychedelics (Side Story) - sequel in one of the chapters
Itou-san (KURAKA Sui)
ch1-6 ito-san
ch7 - pet/master, bdsm, serial killer
ch7.5 - itou-san parallel world
I: Episode 0 (Prequel/sequel) - About Itou-san's childhood
Katekyo!