_Tofu_

https://www.mangago.zone/read-manga/don_t_cry_webtoon/
https://www.mangago.zone/read-manga/once_more/
https://www.mangago.zone/read-manga/the_tryant_falls_in_love/
https://www.mangago.zone/read-manga/yubisaki_to_renren/
https://www.mangago.zone/read-manga/strobe_edge/
https://www.mangago.zone/read-manga/paperbag_kun_is_in_love/
https://www.mangago.zone/read-manga/lonely_lonely_fireflies/

No any explicit smut not even explicit sex spoilers...
https://www.mangago.zone/read-manga/sesame_salt_and_pudding/
A strange marriage contract between a drunk and a old hunk ....you may hate if you dislike age gap

https://www.mangago.zone/read-manga/que_sera_sera/
https://www.mangago.zone/read-manga/i_m_a_villainous_daughter_so_i_m_going_to_keep_the_last_boss/
https://www.mangago.zone/read-manga/light_shadow/
https://www.mangago.zone/read-manga/nekota_no_koto_ga_ki_ni_natte_shikatanai/

These are all completed. At least the ones I've completed on this site. I have more. If you want I can find some more.

Also this one a traditional type of Japanese manga
https://www.mangago.zone/read-manga/nenene/

Also, you may have read all of these since they're kinda mainstream

Loved The Devil in the Suit! So adorable. It's complete and fairly short. https://www.mangago.zone/read-manga/devil_in_the_suit/

https://www.mangago.zone/read-manga/under_the_oak_tree/
I don't know if you read this already or not, but if you haven't give it a try

Thank you for the rec, I haven't read it yet so i'm going to give it a try.

If you loved it, you can check out my list, I'm still in the process of making them ヾ(❀╹◡╹)ﾉ~