He has actually transmigrated into the Mermaid King who has special water abilities. These abilities he already had during the Apocalypse time he came from. Later on the mermaid clan comes to find their King and in the end joins the interstellar Alliance, making all pet mermaids on equal footing as normal citizens.

An Ji's character has many inconsistencies, the character that should bring up more development is the flattest in the novel, I can't believe it comes from a post-apocalyptic world, it's a plush ball from the beginning, while other stories from Survivors seek to be fit to survive the e a salty fish since I came to the interstellar era, I can justify a little naivety for his life before the apocalypse, but as a survivor long after I do not understand how I easily trust the doctor from the beginning, His docility to act like a poodle because I am a pet is uncomfortable but again I can justify it in my mind that he just wants to live and have a good time, but the more I read I can only see the configuration of Virgin Mary in the boy, if so, the better they would have given him the previous identity of a world with powers but had a terminal illness and end, instead of giving him a survivor configuration and f*cking the character by putting ole hairy and pink, luckily they didn't add a glamorous personality to it or this would be complete shit, how to say I am a boy but as I am the uke I must feminize myself or be weak, naive and docile.

I also find the configuration of mermaids annoying, they have a language, they are wild, but they are aware of themselves and they are sociable, having all that I do not understand why they do not have a tribe or something like that, and above all I do not understand why they are easily taken as pets, this simply bothered me from the start, the worst part for me was when they mentioned mating.

Then, they solved the problem of the mermaids, but it was very fast and so simple that you feel that they did not take advantage of the plot, obviously the greatest problem of the novel is the congruence between the characters and their experiences, having arguments to develop the story in a more exciting only justify the plot holes in the most fruitful way, that left me very unsatisfied, mermaids have their own language, so they will have a bad memory and with that nobody will notice (?), bad memory? Is it something genetic, the MC must be important, let's make him the mermaid king even though he was born of unknown genetic material, why is he king? because the plot needs it...
So I can continue, I think that not many people will take these things seriously but I like coherent details even when they are simple plots, so I only vent my suffering for a novel so good in plot it was wasted like this, I enjoyed the arguments, but the MC took away the charm of the novel and the resolutions were not satisfactory

Once MC realized that he was safe, he did immediately try to show the ML his intellect as well as go live to show the rest of the world, so overall, I didn't find that plot point to be a big problem.

mermaids were said to be of super utmost importance to the military, but they were auctioned off at billions - and apparently owned by individual commanders/soldiers, which makes it utterly unbelievable of a phenonmena. It would be more likely for mermaids to be bred by the government and then assigned as a group to take care of soldiers versus being sold off at high prices to individual owners which wouldn't give the government any return if they individually cost tens-to-hundreds of millions.

And has anyone ever heard of military service being lucrative to the point of captains/commanders being able to afford to bid on tens-hundreds of millions on a pet??? And then spend milions more to "keep them happy" and give them whatever they want?? Wild.

are talking monoliths, except the ML and MC. All mermaids are 3 y/o brats with the same whiney personality, with all the same view... just there is no difference between them or the humans for that matter.

Then MC learned to talk and that ruined everything to the very core. This leads to what I thought could have been an amazing character arc for the ML. Since the MC was developing his own identity at this point he becomes super jealous and feels a need to control him, at least to a certain degree. I think this could have been an amazing arc since it would have shown something I am sure most people don't experience from the giver's side of being overprotected. Then we could have seen how he slowly comes to terms with reality and how this over-protectiveness is harming both himself and the MC and slowly learns to give him more freedom. But the author doesn't do this like at all.

This is how MC learns to talk and make money which again has no value to the character whatsoever.

One thing that always pricks me in such novels that MC generally has inherent traits that become a revolutionary point in the progress of the world in which he has transmigrated. He is a unique existence and thud everyone become all curious and excited and start to surround him and becomes like a protected historical treasure.

I finally understood why one commenter mentioned their disbelief on the sudden appearance of holographic whateverness, believe me I almost broke my neck from the whiplash. And then guess what, after it has served its purpose so it was reduced to half assed mentions. The transition to human speech could've been done in a different way. And why is the ML doing mercenary work in the holo world isn't he uhm sick? So why aggravate your wounds over holo things? Ah so he would look cool BOTH in real and holo world. And their dynamic, it was so unbalanced It felt weird they fell in love. The mermaid interactions are both annoying and interestingly cute. The author wanted it to be a lot and so much more but he execution was poor and all over the place. Don't get me started on the mutual love and baby arc. It got even weirder.

And I also want to emphasize the treatment of the world to the so-called emperor. He broke a fuxking mermans hand, i get it, but he was the one who attacked in the first place. Wouldn't they cater to the needs of the EMPEROR first? The person who is uhm DEFENDING THEIR ASSES? Unbelievable. It would've been believable if he was a general or whatever. It's weird that his status as an EMPEROR wasn't enough for him to do a lot of stuff. I guess kudos to the mermaid association for being so great and dedicated at their job. Whatever.