This character, known as "Underpants Leader" (alternatively Don Underwear or Pantsu Soubanchou), is a hopeless romantic fixated on locating a young girl he encountered one year prior to the main events. He vowed never to change his underwear until he finds her and confesses his feelings, a commitment maintained for six months that earned him his nickname. He possesses unkempt black hair with shaven sides, thick black eyebrows, blue eyes, and a noticeable five o'clock shadow. He initially wears a periwinkle yukata. Later, during a theatrical performance, he adopts an elaborate costume: a red and white striped crown with a small gold horn, a navy cape fastened by a gold button clip, red gloves, and a red sleeveless king's outfit adorned with gold lining. Brash but principled, he exhibits single-minded dedication to his unconventional vow. His quest stems from a profound belief in destiny and romantic idealism. He later realizes his attachment may be more tied to the sublime moment of connection—specifically when apples fell simultaneously on both his and the girl's heads—than to the person he believed he loved. His storyline reveals the object of his search, known as "Princess Daruma," was the cross-dressing Festival Committee Head, who frequently disguised himself as a woman. This revelation follows his guerrilla theater production, *The Codger of Monte Cristo*, where he portrays the lead. After the play, a serendipitous recurrence of the fateful moment occurs when carps land on both him and Kazuko Suda, the play's director. This event shifts his romantic focus, leading him to enter a relationship with Suda.