After being kicked out of the entertainment family I supported behind the scenes, I want to enjoy a normal youth

Story:

A boy named Atsumu, labeled "useless" by his famous sisters, was cast out from his entertainment-focused family. Yet, he possessed an exceptional gift for "behind-the-scenes support" that no one, not even himself, had recognized. After changing schools, Atsumu hopes for a quiet, ordinary life, but when he encounters rising stars—VTubers, idols, and models—his hidden talent emerges, making him their irreplaceable pillar. Despite his longing for simplicity, their admiration pulls him into an unexpected journey from outcast to behind-the-scenes hero.