An image from Horimiya, one of the productions that also features HERO.
HERO
Hero (ヒーロー, stylized as HERO, born May 10) is a Japanese manga artist and illustrator. Her real name is Hiroki Adachi (安達 浩樹, Adachi Hiroki). Her blood type is O. She is the author and illustrator of the manga Hori-san to Miyamura-kun.