Advent Pirates: Sign in for Five Years and Blow up the Impel City!

Loya traveled through the world of pirates. He had the potential to become an admiral of the Navy Headquarters, but he was forced into Impel Down City due to the wishes of the Celestial Dragons. But what he didn't expect was that Loya was given a system called sign-in not long after he was imprisoned. Sign in with Hitsugaya Toshiro, successfully inherit the strongest Zanpakutō of the ice and snow system, and gain all its abilities! … Five years later. Facing the navy who intends to come to release him. Loya said calmly: "I used to fight for the justice behind me, but now I just want to rule the world through violence!" Then he swept through the impel city with Daiguren Hyōrinmaru. The whole sea was shaken! Warring States: "I admit, I regret it. I shouldn't have imprisoned him. This kid Loya is more terrifying than Rocks!" Garp: "I bet on my reputation as a naval hero and must capture him again!" General Qing Pheasant: "I didn't expect that he could also control... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.