My ID is Gangnam Beauty
Homely girl transforms through plastic surgery and debuts her new look at college/university. Unfortunately, she's called a Gangnam Beauty (pretty only cuz cosmetic surgery) and she also has to deal with sexual harassment, subtle bullying, a deceptive and sly rival fake-friend (maybe, she's hard to read). Main hero intervenes in her situations, but things get complicated, because the campus beauty has her eye on the hero, who also has a mysterious side.
Minus Hand
Really interesting fanntasy where tyrannical nobles oppress "peasants," and where they seek Genio, a man skilled in prosthetic repairs/engineering. But Genio's misfit son has a curse that's a gift, too--he can break mechanical things witih a touch. This has caused him to be bullied, isolated, and lose many jobs. But if he's the opposite of his gifted, "fixer" father, that doesn't mean his ability is useless....
Dasadanan
As someone mentioned, the situations are typical shoujo-ish/shounen-ai-ish, but the way it's done is refreshingly amusing and cute.
That Summer (kim Hyun)