The Star King Dragon [Revised]

Veldanava lived a regretful life. He made many mistakes, and their consequences were dire. Thankfully, the universe itself seems to pity him as he got a chance to reincarnate back into the Cardinal World as a slime.

Warning:
-A few characters are OOC.
-There has been a change for some characters' backstories, some events and some aspects of canon TenSura.
-This fanfiction will use information from TenSura's anime, manga, spin-offs, movie, web novel and light novels(LN1-LN22).
-This is a harem story with Rimuru and seven characters. You have been warned.