Held down, broken, and dirtied… thoughts and body. When I was in high school, I loved him, the always righteous and kind sensei. Peko’s confession was rejected not for the reason, “because we’re both boys,” but “because we’re teacher and student.” Even if that teacher were to have gotten a female student pregnant, in Peko’s mind, the existence of “sensei” had become special. And now, he meets a man called “sensei” at a bar on his way home from work, once again his feelings toward “sensei” are coming back…?

Yuka is childhood friends with the timid and quiet Kaoru. Once they got into middle school, Yuka decided to ignore Kaoru. But when the time for the gender examination arrived, their lives began to change. Omegaverse ---

Hanada Sakutarou, new employee at a company, meets the carefree yet earnest Chouno, who is different from the strict seniors he had before… in more ways than one.

After a tiring day at work, Take comes home to find his son crying in the dark by himself. His wife ran away, leaving Take to take care of his son, Kota, as a single father. After Kota starts nursery school, Take finds out that one of the teachers, Aoto, was a kid he used to bully in school. Because Take is occupied with both work and raising his son, he has become distanced from his friends. When he unexpectedly allows himself to become vulnerable in front of Aoto, Aoto hugs him and comforts by reminding him that he's trying his best and that his efforts are admirable. Soon after that, Take starts to become more conscious of Aoto…

Contains multiple stories written by different artists. 1. Doku to Sex (毒とセックス) by Harada 2. Toile no Nekomiya-kun (トイレの猫宮くん) by YAMAMOTO Ataru 3. Cyan to Yellow (シアンとイエロー) by NARASHIMA Sachi 4. Love Milky! ~Nyuugyuu Yuki no Shiboritate Shiiku Nikki~ (ラブミルキー！ ～乳牛ユキのしぼりたて飼育日記～) by Yao 5. Dorei Izonshou (奴隷依存症) by SHIROMITSU Daiya 6. Adam to Lilith + Satan (アダムトリリス＋サタン) by NAGI Wataru 7. Monster Throne (Gyokuza no Kaibutsu / 玉座の怪物) by OGAWA Chise 8. sprout by ABE Akane 9. Kemonotachi no In'en (獣たちの淫宴～Animal XXX Club～) by NANGOKU Banana 10. Pulau Senki (プラウ戦記) by IKE Reibun 11. Private Libido (プライベート・リビドー) by AIBA Kyouko 12. Dogma (ドグマ) by akabeko

As he walks down the street, Yu spots a naked figure in a fur coat. Bound to be arrested by the police, Yu grabs the strange naked man and starts running. Little does he know he just laid his hands on the yakuza's belonging. That reality quickly catches up to him literally, and before he knows it, Yu is in the middle of yakuza territory. Hot-headed Makoto flaunts his power as usual while calm and collected Ai, his half-brother and first-man, takes care of the aftermath. Gradually, the complications and relations between the yakuza come to light... Yu stepped on a landmine, but how far will the blast reach?

Serves as a prequel to Chou to Hana no Kankeisei and tells Chouno's tragic backstory after his mother died while he was in middle school. ___ Included as chapters 2-3 in volume 2 of Chou to Hana no Kankeisei