HolyJoker
For once I'm enjoying a fanfic about a MC who is not OP, I think it's because of his personality as he his not a pussy or a goody two shoes and he doesn't care about plot at all. There are other weak to strong one piece fanfics but all of their MC's care too much about plot and joining strawhat pirates.
Thanks for the chapter. Since in the Profile Picture for this novel the mc look like someone from the Hoshigaki Clan (Naruto). Why not adapt Kisame Hoshigaki fighting style for the mc. You could always say that the mc unlock an Ancient Fish-Men Bloodline. Also the fish-man does have their have their own jujutsu. If not, you could always make the mc find one of Vegapunk research lab and get documents about biological cell. If the mc could inject Fish-man, Minks and Giant DNA or genes into his body, maybe his body will mutate and become stronger. He might even get the ability to discharge electric shocks and the mink transform.
I think him capturing territory in the New World was a bad idea. He's a Fishman meaning in a world where most of the Earth is open ocean he should be virtually unstoppable. But instead he hangs around with Yonko and doesn't even dare go deeper for fear of his life, while also gaining the World Government's attention for no reason. He should have just copied the plot and stayed with Gold Roger's crew and helped them out by saving Odin and saving Tom and maybe even Roger's wife. Who cares if the Marines will send Admirals after him, can they swim? Of course he would still have to be careful but at least he would lead a more fulfilling rather than building a harem made out of former slaves and hiding under the sea for most of his life. Imo he should team up with Neptune and become something like Head of Security and use the random Fishman to build up his army and accomplish his missions. He should helped out Fisher Tiger and recruited him as well and maybe even stop Arlong from becoming evil. If he just goes around killing random pirates and challenging the Yonko isn't he just doing the World Government's job for them?