Dynasty Reader

Kosugi Koutarou — https://twitter.com/koukosugi

Name (JP): 小杉光太郎

Twitter: https://twitter.com/koukosugi
Pixiv: https://www.pixiv.net/member.php?id=1350669

Artist of Locodol.
https://en.wikipedia.org/wiki/Locodol

BanG Dream! Garupa☆PICO Comic Anthology ch09: In the Middle of the Dream+ (plus) BanG Dream! Doujin released Oct 19 '19 Anime Comedy Music School girl Spin-off