Kinge's Cub is a minor character.
Kenichi's Father had his eyes in Kinge and her cub since autumn, and assuming they're Brown bear and Asian black bear mix. The cub hides when it's mother protect by attacking Kenichi Kotani and his father with Hayate when they got too close. After Yamato and Ryō Fujiwara arrive and joins the fight and kill Kinge, the cub tries to flee. But Kenichi ordering Hayate to kill it. The cub's death awakes memories of a fox kit Yamato once befriended and then fights his brother Hayate.