Responses
https://www.mangago.me/read-manga/island_of_stars_and_chains/ youre definitely describing the mc's sister here
beta
https://www.mangago.me/read-manga/island_of_stars_and_chains/ youre definitely describing the mc's sister here
Recommend me manhwas/novels with a returnee main character (that got isekai'd and then came back to Earth) OR with reverse isekai (where the mc got isekai'd from a fantasy world to Earth and not the opposite)