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It’s not manga or manhwa but this is full of sweetness to the point it’d give you diabetes
https://www.novelupdates.com/series/since-ive-reincarnated-as-the-villainess-father-ill-shower-my-wife-and-daughter-in-love/
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https://www.mangago.zone/read-manga/reiwa_hanamaru_gakuen/
https://www.mangago.zone/read-manga/atarashii_joushi_wa_dotennen/
https://www.mangago.zone/read-manga/ojisama_to_neko/
https://www.mangago.zone/read-manga/fukigen_na_mononokean/
https://www.mangago.zone/read-manga/ookiku_nattara_kekkon_suru/
https://www.mangago.zone/read-manga/akuma_no_mama/
https://www.mangago.zone/read-manga/cool_doji_danshi/
Please drop down some seriously cute fluffy cliche of any genre as long as it's overall less angsty
I need something just to take me to a happy place for a bit :)