Kirepapa.

The film follows Chisato, a 35-year-old writer who appears youthful and is overly protective of his 15-year-old son, Riju. Chisato's attempts to keep Riju's friends away stem from his belief that they harbor ulterior motives. The plot thickens with the introduction of Shunsuke, a boy who seems immune to Chisato's manipulations, raising questions about his true intentions toward Riju.

Kirepapa explores themes of love, protection, and the lengths a parent will go to safeguard their child. The film's unique premise and character dynamics make it appealing to fans of the romance and boys' love genres. Its animation style and humor also provide a distinct viewing experience that reflects the trends of its era in Japanese animation.