....

https://www.mangago.zone/read-manga/spring_snow_odongtong/ made me absolutely crushed

https://www.mangago.zone/read-manga/when_sato_kun_died/

https://www.mangago.zone/read-manga/mouth_to_mouse/

https://www.mangago.zone/read-manga/one_armed_amy/

https://www.mangago.zone/read-manga/oneichan_to_issho/
https://www.mangago.zone/read-manga/sarashi_asobi/ (last chapter mostly, but the whole story is beautifully sad)
https://www.mangago.zone/read-manga/will_you_marry_me_again_if_you_are_reborn/ (if you don’t mind a couple more chaps, this is 22)
https://www.mangago.zone/read-manga/castle_mango/
https://www.mangago.zone/read-manga/yakuza_wo_shibatte_ii_desu_ka/
https://www.mangago.zone/read-manga/nichijou_climax/
https://www.mangago.zone/read-manga/orange_takano_ichigo/ (26 chaps)
https://www.mangago.zone/read-manga/my_broken_mariko/

Hope you enjoy