As the brawlers are going across the river, Sakuro discovers the boy from the forest he met long time ago. Sakuro reunited with his missing cousin Marcus after he is lost in the forest and decides to find his family with the help of Kouchu and Shauna. However, having to look for his family isn't easy for the Crystal Brawlers. However, with the help of a familiar Crystal Monster, friends of Marcus, the brawlers figured. When he found his family in Dark City, Marcus thanked Sakuro with the Crystal Ball. Kouchu and his friends continue on their trail for the fourth medal.
