A Familiar person

Quinn couldn't quite believe what he was seeing. Another Demon tier beast had appeared on the island or more accurately in the sea. What's more, it seemed to be a beast he was all too familiar with.

When first coming to the island, he had run into it and it had ended up demolishing Logan's precious submarine. On their second visit, Quinn had seen Mona tame the beast, a feat so amazing that she might be the only one able to achieve such a thing, with the exception of Sil perhaps, but he clearly remembered that the Kraken had not been a Demon tier beast at the time.

The confusing part was that Mona had once claimed that she didn't think it possible for her to be able to control a Demon tier beast, due to the way her ability worked. She only had enough MC cells to control a Demi-god tier beast, with perhaps a few lower tier ones on top of that.