The second of Chii's children, and the smaller, more bookish of the twins. Like Touka, he does his best not to hurt people's feelings, though he seems more prone to having his own feelings be bruised than he is to bruise others. He's able to read the minds of others, though only their direct thoughts. This leaves plenty of room for error, to say the least. Like Touka, he doesn't like being idle, though he dislikes tiring himself out needlessly as well. His Mind powers seem most in-tune with people like him, meaning he would get a power boost from like-minded individuals (literally).
Because of the way he and his brother's Seeds were made, the subject of their father is a bit of a tricky one. It seems he's inherited some of Crysta's DNA, making him part Arrowkert. He's got a slight affinity for Love Magic as a result.
After Crysta and Aika helped him and his brother grow up, Renai bore 4 children, and seems very protective over them. His relationship with Amias increased to the point that they became Mates, though they haven't had anymore kids yet. He has strong fox traits, having a fox tail and ears.