Boku no Shiranai Koi no Hanashi

Arima is in a relationship with Saeki, a sincere and attractive partner who emits a captivating scent. Saeki had previously been in a relationship with Tanaka, who now lives nearby as Arima's neighbor. Saeki encouraged Arima to end things with Tanaka and begin dating him. Despite their current relationship, Saeki carries emotional wounds from past experiences involving forced BDSM with his former partner, and he often feels discomfort when Arima shows affection.