Koitomo Triangle
Ch. 1-4.5: Sakai has been in love with his playboy best friend Nishimura for a long time. Since high school, Sakai has been sex friends with Kitada to relieve the stress of loving Nishimura. When Nishimura walks in on Sakai and Kitada, their relationship changes. Ch. 5-6: Takabayashi, a bodyguard, is enamored with pole dancer Arisu and becomes jealous when he thinks Arisu has been seeing a customer
Oboreru Triangle
Woman loving Nao falls in love at first sight with a beautiful woman, Azusa. Without speaking, she agrees to a date with him. At the end of the date, Azusa reveals that he's a man, but Nao, though surprised wants to see him again. Their relationship is going smoothly until Subaru, Nao's childhood friend and roommate, jealously tries to get between them.
Omegaverse
Ch. 4: Ω Rui loses his suppressants an he is taken by his ⍺ friend Touma Ch. 5: Ω Kanata is dating ⍺ childhood friend Takeru, but their ⍺ childhood friend Luca and Kanata are fated mates Ch. 6: Ω hating ⍺ Futoshi falls for hopeless romantic Ω Hizuru Ch. 7: ⍺ Nana loves his β childhood friend Rio Ch. 8: Ω Keisuke wants to prove omegas are equals, but the only one who agrees with him is his ⍺ childhood friend Tooru Ch. 10: ⍺ teacher Kazuoka and ⍺ counselor Hasuno discuss their job and love
sefure ijou, koibito miman!
Ch. 1: Nanami has several sex friends, but Kazuma is the one he sees regularly. When Kazuma bring his twin brother Shoma for a threesome, Shoma falls for Nanami Ch. 2-3: Aki is dating his perverted childhood friend Ryujiro, who resigned just to live with him, but suddenly Ryujiro stops paying attention to him Ch. 4-5: Otaku Odagiri is blackmailed into being playboy Saiga's slave after taking a picture of his crush
Itoshi No Mitsuyoku Circus
Ch. 1-3: Lambert, the new strongman, joined the circus for alluring, but socially inept beast tamer Ulvano. Lambert want to perform with him, but just being around Ulvano makes him hard. Ch. 4-5: After visiting the circus, famous painter twins Stephan and Silvio become taken with circus clown Tino and force him to be their nude model Ch. 6: Ringleader Gill is concerned about the circus's finances, but refuses to rely of the masochist owner Roland for help.
Immoral Sandwich
After his first heat came suddenly, omega Kazuomi is attacked by several of his baseball teamates only to be saved, then raped by alpha teammate Kadota. When Kazuomi is about to quit the club, Kadota offer to have sex with him regularly to suppress his heat and knowing it's his only way to keep playing, Kazuomi accepts. At the same time, Kazuomi is being threatened by alpha Tendou, who has the key to Kazuomi's collar and is in love with Kadota, into having sex with him when Kadota is finished.
Mob-kei Danshi no Yuuutsu
Ch. 1-2: Shinobu is completely unremarkable, despite that the super popular You and Keiichi refuse to leave him alone Ch. 3-4: Akira's childhood friend Ikuma wants to bind them together, so he drugs, assaults, and blackmails Akira Ch. 5: Kauya masturbates to the voice of a radio host and has problems after finding out the host's brother Yuuta, who has a really similar voice, goes to his school.
Ai to Makoto (Moriyo)
To payoff his ex-boyfriends debt, Towa takes a contract to be the pet of twins omega Aiji and alpha Seiji, who are actually mates.
Netorare Triangle
Student council president Seigo has been dating cute first year Yuuya for 3 months. When Yuya's childhood friend Ninomiya finds out, he ties Seigo up, takes pictures, and violates him. After Yuya walks in on them, Seigo learns they have been stealing each others lovers since 3rd grade and Yuya completely shifts from his cute facade to his true delinquent personality and embraces Seigo to reset everything prior. Afterward, Nonomiya becomes serious about Seigo and he and Yuya begin sharing Seigo.
Sankaku Opera