Also known as: 春日部つくし, 彩のつくし
A Japanese Indie Virtual Youtuber. She was affiliated with Project Upd8 until it was disbanded. She is also active as an artist, designing her own model and her own VOICEVOX derivative, Kasukabe Tsumugi.
She was initially completely personal in her promotion of Saitama (City)'s attractions, but in 2021 she officially became the "Saitama Virtual Tourism Ambassador".