I'd give this about a 7.5-8/10. Sadly there's only about 16 chapters available so far for the Manga so you'll breeze straight through it. This is a reincarnation type story (the protag is transported into the world of a game they've played and possesses a side character) and I wouldn't really blame you if you didn't know that if you hadn't read the synoposis. There's only ever a quick little line here and there mentioning the protags previous world and outside of that, it's not explored at all. Usually I hate Isekai / Reincarnation stories that don't explore the characters previous world / life at all butthis Manga does well enough in it's main story, and also it's art, that I give it a pass for now.

Hopefully this Manga continues with the amazing art and great main story. I don't know the status of the Light Novel but I feel like it will be a long time before I can read a decent amount of the Manga.