ShatteredTranquil
Okay, my honest opinion: I think what brings this fanfic down a lot is the choice of chat group members. Don't get me wrong. I admire that the author is trying to do something original but these are not the 'mainstream' franchises and that means many readers will have no idea who they are, and therefore their interest in the story will drop. I judge by how I feel after reading it. The DxD part was good, the MCs power marvelous, and yet, this isekai thing started and I am losing interest. All good impression your fanfic created so far is starting to fade simply because I have a hard time getting invested in these characters. The main problem is that the author is not a pro-writer. He is like most fanfic writers, an amateur who just wants to create a story. Nothing wrong with that but he simply made his work a hundredfold harder by not using 'known' characters or franchises to piggyback some interest in his fanfic. To make this successful, it would require a lot of writing skills... THAT is why people usually chose characters from famous franchises. It is simply much easier to generate interest that way. And I am sorry, mate, but it is what it is and I am just stating my feelings after reading this. You can take it or leave it, I don't really care. But I don't think your fanfic will get much recognition, despite having a genuinely good concept and great MC starting power, simply because many will get bored to death the second the isekai and chat group part starts. I can't get invested in the utterly annoying Neptune or the 'who-the-heck-is-that?' Goat because I don't know these characters and you are not writing them in a good enough way that would make me invested in them in this story. I have problems with the vampire too because I couldn't care less about him too despite knowing about him. Now, I might be wrong and this might be the next best hit of this platform... but I doubt it. For that, the author would first have to get at least 100 chapters, and THEN the problems I am describing would start really showing. Oh, well, ignore me. I am just ranting anyway...