Seama Hayamizu (also spelled Shiima Hayamizu) joined the original Shōnen Hollywood idol group at age 15, becoming its youngest member with blue designated as his "Hollywood color." A significant personal aspiration during his tenure was appearing in a movie featuring all the original members.

The group disbanded abruptly at their peak popularity following the sudden death of their president. Post-disbandment, Hayamizu built a career within the entertainment industry, establishing himself as a music producer.

Fifteen years after the novel's chronicled events, Hayamizu visited the Hollywood Tokyo theater. He voiced strong disapproval of the new generation of Shōnen Hollywood idols, believing their activities damaged the legacy and eternal image meticulously cultivated by the original group. He contended the original members disbanded precisely to preserve their legacy as an untarnished ideal, and the new group's existence undermined that intention. During this visit, he proposed taking over the theater to remodel it into an idol academy. His vision involved recruiting additional members for the new group, renaming them, and enlisting all the original Shōnen Hollywood members as instructors under the theater president as director. This academy concept embodied his ongoing dream to reunite the original members and formalize their legacy through teaching.