【Amazing collab 🥹】 Seishun Gakuen and Star⭐︎T collab “Letter” The performance was so stunning it took my breath away. That groups from Fukuoka and Aichi could put on such an incredible collab performance… How much do they practice? It was just amazing! #青春学園 @seishunken2018 #すたーと @star2t_info

A video posted by @tamukko543 on X (formerly Twitter) (June 15, 2026 ・ その他 ・ 4:30 ・ #青春学園 #すたーと). Watch and download it on XCLYP.