about question
It's an Eyeshield 21 reference! That "YA-HA!" small text is the famous catchphrase of one of the protagonists of the manga, Hiruma Yoichi.
ES21 is a 2002 Japanese manga about American Football. The story is by Riichieo Inagaki and the artist behind it is Yusuke Murata, the same artist behind One Punch Man :D
You can say it's one of his early works...... 2 reply