Blue Kastor

Blue is sarcastic, charismatic, and more than a little distracted. He's not always all that interested in making friends, but if he thinks you have something to offer him, he'll cozy up to you in a heartbeat. When we first meet him, he's focused on one thing & one thing only: finding his recently missing twin brother. Though the stories he tells you may not be all that they seem. Something dark, and maybe even magical, lurks beneath that tired exterior.

[From Kickstarter]

Blue can be romanced on his own or as part of a polyamorous triad with Adrien.