Jin is the replacement for Kin Kujira that Corey made in the episode It's in the Card after Grojband broke up. He is a skateboard that is dressed up and decorated to look like Kin.
Appearance
Jin is a brown skateboard with Kin's glasses that seem to be painted on but also seem to be his real glasses. Kin's face is painted on the front of the skateboard as well as his hair on top. The skateboard is in a small cardboard box that is painted to look like Kin's shirt. Jin has two pieces of wood nailed on it's sides with yellow rubber gloves on the ends of them that serve as his arms. Kin's pants and shoes are at the bottom.