Urakata de Support shiteta Geinou Ikka wo Tsuihou sareta Boku wa, Futsuu no Seishun wo Ouka shitai.

A boy named Atsumu was branded as “useless” by his famous sisters and banished from his entertainment-industry family. However, hidden within him was an extraordinarily talented “behind-the-scenes support” skill that neither he nor his family had noticed! After transferring schools, Atsumu is now determined to live a normal life, but as he crosses paths with talented entertainers—VTubers, idols, and models—his natural ability starts to shine, making him their indispensable support. They can’t help but adore him, turning his simple wish for normality into a showbiz underdog success story!

(Source: Square Enix, translated)