Reborn as a Squid is a Manga/Manhwa/Manhua in (English/Raw) language, manhua series, english chapters have been translated and you can read them here.
After the protagonist of the gangster manga unexpectedly dies, he reincarnated into a different world’s ocean, transforming into a cute little squid. However, the seemingly peaceful Atlan Sea is, in reality, a bloody battlefield where various powerful figures engage in fierce struggles …