An elementary school brat, Shiro Takaoji, seeks help from the Host Club to win the hearts of girls. Renge develops a role for him: being a shota of the naughty type, but Shiro denounces the whole club as idiots and runs away. The Host Club infiltrates his school and discovers that Shiro has a crush on a girl called Hina who will soon be moving away. She and Shiro were supposed to play a piano duet, but Shiro is unprepared. Tamaki brings Shiro back to Music Room 3 and reveals that he, himself, is an accomplished pianist and will tutor Shiro in the upcoming piece. Hina is invited to a special event where she and Shiro play their duet.