Episode 6 (K Return of Kings)

Summary
Nagare Hisui and green clan have decided to attack Mishashira Tower to take the Dresden Slate. The three clans alliance also start their countermeasures against them with Yashiro Isana as the strategist. As Nagare only has a limited amount of time to fight, Yukari Mishakuji and Sukuna Gojo act as vanguards to open up the path for him.

The alliance of the Silver, Blue, and Red clansmen begin to cooperate willingly, starting to defend Mihashira Tower from the Green clansmen on Christmas eve. On the start of the attack, Sukuna and Yuari infiltrate the front lobby, disabling the security cameras and pushing back Scepter 4 clansmen, however their duty is to act as bait to split up the two, Yashiro, Neko, and Kuro to fight Yukari, and the combined forces of HOMRA and scepter 4 to overcome Sukuna. Instead, Yukari ends up being trapped by the forces of HOMRA and scepter 4, while Sukuna to fight the silver clan.

Nagare and the mysterious man stand by at the front lobby, debating whether Nagare should charge in with three kings up on the higher levels. Nagare persists that he will go anyways, despite the mysterious mans warnings. The mysterious man embraces Nagares plan. Nagare concludes that the alliance is formidable, but not enough for him. Nagare stands up and breaks the steal straight jacket and rushes off into the distance. The mysterious mans last quote is "Well, go and have a blast."