who are characters you initially hated but ended up loving?

I went into the game a riddle stan with tons of dia always stockpiled, played the english adaptation, read the story and came out two/three years later a changed main (that's a joke, i switch between my favorite boy of the day like i do with multiple choice options) with absolutely no dia to my name anymore, because all the boys are written too well and are too endearing.

i actually initially strongly disliked sebek and ace (to some extent).

okay, so sebek. i think i initially really disliked sebek because i mischaracterized him -- in the beginning, i felt he was just loud, brash and annoying, and overall just badly written comedic relief. but now? he's my son. it's strange to think about it, because ever since chapter seven, i've pulled for most of sebek's SSRs, and a sebek nesoberi sits on my desk now. i've realized that kiddo is really just doing his best, and the way he worships malleus is really just his way of loving malleus and also demonstrating his pride in his homeland. is it sometimes annoying? yes. but is it also sometimes really funny now? also yes. (ie: masquerade. bro had me laughing every other scene he was in) he's loud and annoying, but he's also mellowed out a lot since we were first introduced to him. there's a lot more nuance to his character, and i've genuinely come to like him a lot.

ace is a trickier thing because i still don't love him to bits enough to pull for his cards? (yall, dia is mad tight) but i do respect his character growth, and i will most certainly pull for him when his character art is good (read: pj ace has me by the heart). he was initially similar to sebak in being hated because i felt he was loud, brash and mouthy, but i really like the way they've written him off to be more mellowed in the previous chapters and events too. he's become a character that sometimes says something that's on the meaner side of teasing (imo), but also says and does things that demonstrates how much he genuinely cares.

would love to hear who you initially hated but came to love!! (sorry for the rambling yall, sebak and ace bring the yapper inside me that i didn't know i had)