BL - Revenge

Akesato go to a hotel with a handsome man he met a bar. While, hooking up the man reveals himself to be Hosokawa, the chubby kid Akesato teased in him school. Hosokawa, now a narcissist, plans to make Akesato fall for him as revenge.

Shinji enjoys playing around with men and treats relationships like a game. However, a delusional man Shinji previously slept with hires Yuusei to ruin Shinji by making him fall for Yuusei.

Secret XXX Spin-Off
After getting dumped by his girlfriend, Shizuma, Shohei's older brother, drunkenly has a one night stand with Minato, Mito's younger brother, after comforting him over being upset at Shohei stealing Mito. Minato, thinking he had finally found someone he wanted to stay with, becomes furious when Shizuma wakes up without any memories of their night together. So, Minato decides to get revenge by seducing Shizuma into falling in love with him, then abandoning him.

Sequel to Therapy Game
Minato and Shizuma are officially lovers. But, when Shizuma finally starts working as a veterinarian, in an office of all women, he becomes extremely busy and exhausted. Unable to see each other or even talk for more than a few minutes, Minato becomes depressed from his loneliness.

Taisei has always been spoil by others due to his pretty face. Middle school is the only stain in his pleasant life, when Okachimachi, who Taisei thought was his friend, told Taisei they were never friends at all. Now, Okachimachi has transffered into Taisei's high school and doesn't remember Taisei. Humiliated, Taisei wants revenge by making Okachimachi feel the pain he felt.

Ch. 1-3,0.3: Plant nerd Hiromu was bullied in high school by air-headed delinquent Natsu, so he went to beauty school to completely change from his former self. When Natsuo walks into the salon Hiromu works at and doesn't recognize him, Hiromu uses this chance to get revenge by agreeing to date him, with the intention of dumping him later.

Ch. 6-8: When Misato's boyfriend leaves him for Satoshi, he starts dating Mei, Satoshi's crush, as revenge.

Ch.1-3: As revenge for dumping his older sister, Futaba plans to make two-faced Minato fall for him by acting like a crazed stalker who will accept everything about him.

Ch. 4: Hidaka can't forget the crybaby with frizzy, red hair that he bullied in elementary school. When new transfer student Mochizuki arrives, Hidaka can't seem to leave him alone and ends up falling for him. After Hidaka and Mochizuki start dating, Hidaka thinks he'll finally forget about the crybaby. But then, Hidaka suddenly starts being anonymously bullied.

In high school, Sakuma was bullied by Hayami to the point of not wanting to attend school. After realizing no one would help him, Sakuma focused on studying and became someone others wouldn't look down on. However, he still can't forget those days, feeling a void in his heart. When Sakuma helps a man who turn out to be a drunk Hayami, he ends up taking Hayami to his place. After impulsively having sex with Hayami, Sakuma plans to get revenge by making Hayami fall for him and then betraying him.