A year has passed since the School Island incident, where four of the seven kings fought for their lives to stop the evil Colorless King. Since then, Silver King Yashiro Isana has gone missing and the Green Clan JUNGLE has become more active in spreading their influence over the community, much to the annoyance of Blue Clan SCEPTER 4 and Red Clan HOMRA.

Hoping to learn more about his recent encounter with JUNGLE, Blue King Reisi Munakata summons Kuro to SCEPTER 4; Neko waits at HOMRA's home base for her partner.