A Nijisanji virtual YouTuber, part of the group Orihimeboshi and designed by Komeshiro Kasu.
See post #3661421.
She is portrayed with very long blonde hair and heterochromic orange and red eyes.
The following tags implicate this tag: hoshikawa_sara_(1st_costume), hoshikawa_sara_(2nd_costume), hoshikawa_sara_(3rd_costume), hoshikawa_sara_(4th_costume), hoshikawa_sara_(5th_costume), hoshikawa_sara_(6th_costume), and hoshikawa_sara_(7th_costume) (learn more).