Upon receiving several ominous letters in the mail -- one of which includes the phrase "You are supposed to marry me" -- Yumiko consults her photo album and finds a snapshot of her likely stalker. Considered her high school's resident "weirdo," Mikariya is rumored to have killed his parents with a length of piano wire -- and now he wants Yumiko to be his lover. Can she dismiss his obsession as harmless, or is he truly psychotic?