Koisuru Boukun

absent parents adapted to anime adapted to drama cd adapted to ova / oav affectionate seme ambiguous relationship anti-social protagonist aphrodisiac assistants attempted suicide bickering love blackmail bossy lover bossy uke brother complex caught in the act chasing after love interest clingy lover cohabitation cold male lead cold uke confinement controversial crossover dead family members dead parents denied feelings dense when it comes to love dishonest protagonist doting lovers dubious consent emotionally confused estranged family family drama finding love again fire friends grow distant gay bar gay seme glasses-wearing male lead glasses-wearing protagonist glasses-wearing uke homophobia homophobic uke injury/ies insecure characters live-in lover long-haired male lead long-haired uke manly gay couple masculine uke masochists masturbation misunderstandings older uke younger seme optimistic protagonist overprotective siblings painful first love pansexual partially adapted to anime past plays a big role persistent seme possessive lovers post-graduate students proactive protagonist puppy-like seme rape rape as a start of relationship reluctant protagonist researchers reunions rumors scientists secret relationships seme falling in love first seme-like uke senpai-kouhai relationship sexual assault short-tempered protagonist sleep molestation slow romance stalkers stolen kiss straight uke tragic past troubled past troubled protagonist tsundere characters tsundere male lead tsundere uke university/college university/post-secondary students unrequited love unrequited love becomes requited violent uke wanko wanko seme younger sister