Cheering for your favorite idol at a concert often involves items such as customized fans with messages on them and identical glow sticks in the colors of the celebrity act. Companies are rushing to offer that and more. https://www.japantimes.co.jp/culture/2025/07/12/music/oshikatsu-merch-expo/?utm_medium=Social&utm_source=mastodon #culture #music #idols #jpop #oshikatsu #tokyolifestyleweek