Due to previous trauma, Nanase has developed a sensitivity to men's scents and refuses to remove his mask during intimate encounters. As a result, his partners become frustrated and ultimately leave him. One day, Nanase becomes involved with a man whose scent resembles that of his ex-boyfriend, triggering his emotional turmoil once again. Feeling overwhelmed and vulnerable, Nanase impulsively runs away.
However, fate brings him back to the man when he enters an incense store lured by the pleasant aroma. To his surprise, he finds that the store owner is the same man he had been with before, Kei. Despite his previous rejection, Kei extends warmth and kindness towards Nanase, slowly thawing his frozen heart.