Regression V Returnee

Kuroi Ashiro, age 21, has died 4 times, returned and regressed 4 times each. This is his final isekai, and last life.

This is my like second or third book I've tried writing and I'm finally happy with the style I wrote it in, let me know if this is interesting, or anything should be redone, and I haven't finished the plot so you could throw in some ideas, I don't plan on dropping this one, kinda like my dream novel idea.