I know one like this. Something like ugly duckling except the girl is a bit crazy and its a horror manga. I dont remember the name though sry. But True Beauty fits your description (=・ω・=)
Oh no no wait. I read your question as 'i would prefer if she had a Cinderella transformation ' so forget True Beauty she does kinda use makeup to look pretty. My bad i didnt help at all ╥﹏╥
my id is gangnam beauty
http://www.mangago.zone/read-manga/perfect_girl_evolution/?tjDk
She is attractive when she put on makeup and when she's happy.
You can also read for free "Spirit finger" on webtoon
Can anyone rec me a manga with an unattractive female lead or female mc? I mean canonly unattractive, not that it just has bad art or she’s “not like other girls”. I’d also prefer she doesn’t have a Cinderella transformation, I kinda want reassurance that you can be unattractive and still live a good life.