Мао

Mao is Rio's twin brother. He is very good at studying and sports, very popular, and constantly works on improving himself. His left eye is blue, same as Rio's right eye. Witnessing Rio disappear after being hit by a car while trying to rescue a cat off the road, Mao wishes to be transported to where Rio is and is taken to the kingdom of Maurice. He runs into Gust, who offers to grant him a wish. Rio and Mao are the reincarnation of Hilario, "the immortal and most powerful cat" and Tarnist's previous cat familiar. After reuniting with Rio, Mao confesses that he's had memories of being Hilario all along.