Erotoro R18
Ch. 3: Mineo's life is change when he's saved by gay prostitute Megumi Ch. 11: A man comes up with wild roleplay idea to try with his partner Ch. 7: Popular Ogasawara secretly assaults Gorou, but is troubled when Gorou hugs him during it Ch. 8.1-8.2: Yuuki has been lying to his sex friend Tama about his age Ch. 9: Yousuke has loved Kazuichi since kissing as kids V.3 Ch.3: A student has lewd fantasies about a student he sees on the train Ch. 4: Couple from Ch. 11 try rape play at home
Bokura To Usagi No Koi Wa Sensou
Santarou's ordinary in every way except that his body gives off a scent that unnaturally arouses men. Because of this he is regularly fondled by his demon childhood friend Sukai, oil tycoon transfer student King, mysterious classmate Mimi, and the super perverted student council president Tomomatsu.
Natsume-kun Wa Nan Demo Shitteru
Yosuke's childhood friend and neighbor Natsume always seems to know everything about him. When Yosuke thinks a girl is going to confess to him, she asks to be introduced to Natsume instead. When he sees Natsume that night, Yosuke takes his frustration out on him, but feeling regret full goes to his room to apologize. In Natsume's room, Yosuke finds candid photos, his missing clothes, and even one of the unused condoms he bought. Natsume knows everything about Yosuke because he's stalking him.
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
Kazoku Ni Narouyo
Childhood friends Chiasa and Kazuma have been dating for 8 years. When they're reunited with their childhood friend Tomoe, she is heavily pregnant and doesn't know who the father is, so the couple agrees to help her while she's pregnant. But, a year after the baby, Ayumi is born, Tomoe suddenly ask the to take care of her. The two begin their life as parents.
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
Nibiiro Musica
10 years ago, Takuma's best friend Yuki went to Italy to become a cellist and the two eventually lost touch. Now, Takuma works as a home helper. When he gets the house of his new patient, a semi-blind man with bandages covering his eyes, the man turns out to be Yuki and Takuma decides to keep his identity a secret from him.
Liquor & Cigarette
Theo and Camilo are childhood friends running their families' businesses across from each other. Camilo runs a tobacco shop, is openly bisexual, and open about his long-held love for Theo, whereas Theo runs a liquor store, despite his intolerance for alcohol, and, is struggling to figure out his own sexuality and admit his feelings for Camilo. One day, a drunk Theo shares his concerns with Camilo and the two begin experimentally dating.
5 Seconds
Ch. 1-2,7: Hayato can copy sexual desires by making eye contact, but when he copys a cat, his childhood friend Tsukasa gets involved Ch. 3: Kei reunites with his younger twin brother, Yuu, who started crossdressing Ch. 4: Takumi is being stalked by popular Kudou, who copies all of his outfits Ch. 5: Taku and Nobu always fight over Rei, but Rei notices their bruises increasing, then finds them making out and Rei gets upset Ch. 6: Due to a promise, Aki films his crush's, porn star Asahi, AVs
Kemono ni Namida