Bro, I'll give you a 5 star rating just to you motivated. Also, keep writing and more readers will read your novel. Most of the time, readers prefer to read novels that has more than 100 chapters.
I've heard about it but never tried to read it. But if there's a problem I can think of, it's probably about too much characters. A Global transmigration, seems like there are tons of people who has the potential to become MCs.
I understand the Jojo reference since I'm a Jojo fan. However, I don't who K is. At first I thought your talking about SBR(Steel Ball Run) but based on what I can see, you're talking about SDR which I have no idea.