Card Lores:Cold Boy, Yuki

He is a human from the Ocean Route clan with the special ability to manipulate ice. On one of the missions he went on, everyone in his team had failed to return safely. As such, now he prefers to go in small groups that he can keep an eye on in the case of an attack.

He is part of the counterattack portion of the Ocean Route. He focuses on immobilizing his opponents with his ability to freeze Water Vapour. Even though he defends his team, he does not let out a sound to them; in fear of them either getting too close to him, or him getting too close to them. For if one fails to return, the ones alive suffer.