Mamiya Hibiki is a regular guy with not so regular interests. He’s a huge fan of the decade-old drama series Possessive Boyfriends, and his favourite character by far is Kirisaki Shin: a deranged yandere who expresses his love with continuous threats of entrapment, torture, and murder. Hibiki’s dull corporate job is a draining one, and to make his commutes to work less unbearable, he takes to listening to Shin’s dulcet tones on the train in the early hours of the morning. The highest form of self-care, for Hibiki, comes in the form of fantasising about Shin, his beloved, brutally murdering him… But the real world soon encroaches on his harmless(?) fantasies, when a scuffle on the train results in his headphone jack coming unplugged from his phone. In an instant, Shin’s murderous expressions of amour are broadcast to the rest of the train: including a smug older man Hibiki takes to calling ‘that bastard’, who finds the whole debacle incredibly amusing. Hibiki might enjoy fictional characters threatening to kill him, but he’s far less receptive about real men teasing him about these desires. That’s what Hibiki thinks, at least – until he runs into his silver-tongued tormentor yet again, and things start to get serious…