The Demon Sea Octopus' tentacles rosed up into the open seas and started to grab the unwitting Kurma who was too focused on managing the Giant War Tortoises. The sea serpents like tentacles simultaneously took hold of the four legs and attempted to pull him into the sea.
Of course, when Kurma noticed it, he did not worry about anything at all. He was nicknamed the Immovable Foundation by his fellow Celestials and with reason. But what he did not know or not noticed was that the Demon Sea Octopus had fully assimilated the strength of the forbidden magic that the previous Rifle Mages had performed to keep the initial wave at bay.