During his mundane school days at Keikou Middle School, Hiroyuki Tsunekawa leads a double life as the mysterious and beauty-fixated emperor, 'Zera,' of the Hikari Club—a secretive group within the school's confines. Their year-long project involves developing a sophisticated humanoid robot, 'Litchi,' powered by lychee fruit, with a sinister goal of abducting attractive girls. However, when Litchi successfully carries out a kidnapping, chaos ensues within the club. Zera's ruthless pursuit of justice for traitors leads to internal strife and dwindling membership. As dissent brews and Litchi displays unexpected human traits, the once-unified Hikari Club faces a critical test: can they restore their fractured unity and purpose?