BL - Childhood Friends

Shun is the younger childhood friend of twins Eiji and Hidekazu and is in love with the younger twin, Eiji. Eiji is also in love with Shun, but due to some misunderstandings, believes Shun is in love with Hide. When Shun enters the same university as the twins, he also moves into their apartment where the misunderstanding seem to get worse.
Also features the story of Hidekazu falling in love with a pretty tsundere, Yuki

After failing his midterm exams, Minami’s mother hires a tutor to help him. Minami was opposed until he finds out his tutor is actually Uta, his older childhood friend has hasn’t seen for years. While Minami is just excited to see him again, Uta is excited to teach him a special lesson.

Maki has always been an idiot, so his childhood friend Rintarou has taken care of him since they were kids. However, once they started living together university, Maki goes from being a regular idiot to being a perverted idiot, but only toward Rintarou.

Haru has always been in love with his older brother’s best friend Soudai. Haru imitates Soudai, even joining the same club as him. They lose contact when Soudai becomes a university student, but one day Soudai suddenly calls him again. Soudai confesses he's always resented Haru, but when Soudai's friend takes interest in Haru, Soudai gets jealous.

Hideaki always gets in the way of his childhood friend Tomo's relationships. When Hideaki finds out Tomo was keeping his new girlfriend a secret from him, they fight. Tomo's feelings for Hideaki start to change when he discovers that Hideaki has a boyfriend.

When Chiyo goes to visit his best friend Kei, he finds Kei mastubating while calling out Chiyo's name. Having been together for ten years and having thought he knew everything about Kei, Chiyo doesn't know how to confront Kei. But when the two get drunk, Chiyo reveals he had seen Kei. Kei tells Chiyo its only fair if Chiyo shows him too, but it escalates to Kei giving him a blowjob. Now sober, the two are afraid of their friendship changing.

Kei is in love with his childhood friend Ippei, but when they went to university they drifted apart. Suddenly, Kei gets a call from a drunk Ippei asking to stay over and that's when Kei learns Ippei has a habit of stripping in his sleep.

Oosawa agrees to pay his good-for-nothing childhood friend Maruyama's debts, if Maruyama becomes his lover. Oosawa's only rule is that Maruyama must be at home when Oosawa comes home from work at night. After Maruyama comes back smelling like perfume and Oosawa get angry, Maruyama realizes Oosawa has actually liked him since they were young. When Maruyama's ex-wife shows up, Oosawa misunderstands and tells Maruyama to get out, but Maruyama doesn't want to leave him.

In high school, Ichika confessed to his best friend Shuu, but Shuu mistook it as a joke. 10 years later, they are still together and whenever Shuu has problems with women, he complains to Ichika, but Ichika has never talked to Shuu about being in a relationship. So, when Shuu sees Ichika entering a love hotel with another man, Shuu confronts him, forcing his idea of normalcy on to Ichika, and Ichika is forced to confess again. But, this time, Ichika's confession has Shuu rethinking his feelings.

Maki always thought of his childhood friend Shuu as an older brother. One day, when Maki goes to Shuu's place, Shuu's friends pin Maki down, intending to take his virginity. Upon seeing them, Shuu attacks them and kicks them out, then, gives Maki a blowjobs to overwrite their actions. The next day, the two become lovers after Maki asks for answers and Shuu confesses. However, after a year of doing no more than kissing, Maki becomes afraid Shuu doesn't see him as a real lover, but a pet dog.