Responses
https://www.mangago.me/read-manga/island_of_stars_and_chains/ youre definitely describing the mc's sister here
https://www.mangago.me/read-manga/the_no_1_host_in_kabukicho_vs_the_no_1_demon_king_of_the_underworld_the_most_beautiful_and_hilarious_battle_in_history_is_born/
https://www.mangago.me/read-manga/holy_idol/
https://www.mangago.me/read-manga/oji_tensei_akuyaku_reijou_no_kareinaru_seikatsu/
https://www.mangago.me/read-manga/dead_mount_death_play/
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)