In Hitomi's Sick Pleasure, Asahi, a high school student, faces a difficult situation. His mother, Hitomi, is unaware of the turmoil caused by a neighborhood bully, Hiroto. Asahi deals with this conflict in solitude, feeling isolated and unable to confide in his mother. While Hitomi endeavors to understand the source of her son Asahi's distress and offer him support, she becomes ensnared in an unending spiral of lust and desire.