Oosawa, a single father struggling to care for his young daughter, accepts the kindness of a customer when she falls ill. Yoshioka is a promiscuous man who is open about his interest in Oosawa, which he doesn't return. But the more time Oosawa and his daughter spend with him, the more things begin to feel like family. (Supportive friend: The boss)
Ayumu has been in love with a sempai at his company for a long time. They're so close and Toujou is so affectionate with him that coworkers joke they're married, but Ayumu has no intention of confessing his feelings and only wishes for Toujou's happiness. (Supportive friends: Their co-workers)
Best friends wander into murky territory when Masayuki discovers that Kei's legs look good in pantyhose. (Supportive family: The sister)
A delinquent sophomore, Nagato, falls in love with Ai, a beautiful boy who, rumor has it, has been used as a sex object by the seniors. Ai has a low opinion of himself and is confused when Nagato continues to approach him, and is bowled over when Nagato confesses his love. (Supportive: Friends at school; Nagato's sister is said to adore Ai)
Childhood friends grow into something more over a period of years. (Supportive characters: Their best female friend, the man who owns the cafe building)
Two high school boys fall in love through music class. (Supportive characters: Sajou's mom, Kusakabe's best friend; in later sequels, Sajou's college classmates)
Katou and Iwaki, two AV actors vying for the same role in an indie flick with hopes of going mainstream, sleep together as part of the audition. Intrigued and curious, Katou pursues a resistant Iwaki, first becoming his lover and (later) his husband. Has an ongoing sequel. (Supportive characters: Katou's family, all of their fans - the relationship is public)
On their graduation day ten years ago, Takashi confessed to Hayate, who was kind but firm with his rejection. But when Takashi started to cry, Hayate promised to celebrate his birthday with him every year until Takashi found someone to love. Ten years later, Takashi lies to Hayate about having a lover in order to end what has become a masochistic ritual, which forces Hayate to make a decision about how he really feels for Takashi. (Supportive characters: Their club friends)
Kirishima is shocked to learn that his best friend and drinking partner, Toudou, has been in love with him since college. Unwilling to end their friendship, he does the only thing he can think of to salvage things between them: asks Toudou out. (Supportive character: Kirishima's younger brother - and mom, in the sequel)
Twelve years after he was taken in by distant relatives after his parents died, a man continues to struggle with feelings for his adopted older brother. (Supportive characters: Their parents)
Sorenari ni Shinken nandesu