Looks like Onyx cat is making fun with him while Mantaro talking with Arma. Arma passed out again when she saw his underwear pants. Onyx stealing Mantaro's pants and run XD

Commission info:

https://www.furaffinity.net/view/40552834/

NOTE : DON'T STEAL, DON'T TRACING AND DON'T REDRAW MY ART! IF YOU DON'T LIKE MY ARTS DON'T COMMENT!

Kinniku Mantaro belongs to Yudetamago (Shonen Jump, Kinnikuman Nisei)
Arma the Armadillo girl and Onyx Cat belongs to me (OC of Kinnikuman Nisei)
Art by  sitinuramjah