Responses
http://www.mangago.zone/read-manga/charlotte_s_letter/
http://www.mangago.zone/read-manga/the_friendly_winter/
The second one has the tag Romance but I think it's more like a friendship rather than romance
I'm commenting since I can never find a story with a female MC without any romance too-
mangas/manhuas/manhwas with female MC and no romance....