Jōkafū no In

Jōkafū no In (淨火封の印) is an ability used by Tatsuma Suguro.

Description
Tatsuma Suguro channels flames into Karura, who then flies forward and forms a pentagram, sealing whatever lies at it's center. Tatsuma first uses this ability to seal the Impure King after it had awoken in an attempt to buy some time so that it could be defeated without it maturing and spreading its miasma.