Arco

Arco (アルコ) is a main female character in the Marco and The Galaxy Dragon series by Tokyotoon. She is a Galaxy Dragon.

Description
"Galaxy dragon" that there is only one in the galaxy. Born from a black hole. Eating is always a joy. Marco is a close friend who sleeps and eats, and now lives as a treasure hunter with Marco. It is usually a small dragon, but when you eat it you become a girl. She promises to eat Marco at the best time with Marco.