Spreading its influence, the Green Clan JUNGLE has caused increased friction with the Red Clan HOMRA and the Blue Clan SCEPTER 4. The war escalates when the Green King, Nagare Hisui, sends his men to attack Kuro and Neko, forcing the Silver King, Yashiro Isana, to return. Reunited with his friends, Shiro will propose an alliance of the Red, Blue, and Silver Clans to stop the Green Clan’s threat, but its King has his own wild cards. The three kings’ combined powers will be needed to thwart the Green King’s dark ambitions.