Showa Era Idiot Story Book: Most Refined S01 E06 Rera's love lunchbox!

Koujirou moves to Tokyo from Japan's northernmost island of Hokkaido and insists on bringing his favourite horse, Hikarikin, with him. The alien king Rel arrives from planet Wedelun and gives him a belt that will allow him to transform into a Miracle Hero and to protect the world from alien menaces. He is more interested, however, in impressing the pretty Yuka, though his rival, Michinari, wants her for himself.