Showtime Ruler (ショウタイム・ルーラー) is a commissioned song by Karasuyasabou and Kamishiro Rui's second focus song. It was written for the Revival my dream event.
- Producer:Tenma Tsukasa, Otori Emu, Kusanagi Nene, Kamishiro Rui, Kagamine
- Release Date:March 1, 2023
