Follow Hajime Sato, a dedicated systems engineer drowning in the grind of his work life at 25. Exhausted from an all-nighter, he boards the early-morning train, only to be startled by the unexpected sounds of a porn actress echoing in the carriage. Intrigued by the audacious culprit behind the lewd noises, Hajime's world is turned upside down when he discovers a charming and unconventional individual. In a bizarre turn of events, this enigmatic stranger, to make amends for the headphone mishap, proposes an unusual journey for Hajime - a quest to relinquish a particular aspect of his innocence. Embark on a peculiar escapade where Hajime confronts the uncharted territories of his sensuality, led by a seductive companion on a mission to redefine boundaries... (Source: Renta!)