[Official Korean Translation](https://www.lezhin.com/ko/comic/all_good_looks)

"I'll give you lessons in standard Japanese. By the way, if you refuse...I'll expose you." Noda, who is called “prince” on campus, has a secret that he can't tell anyone. “That I can only speak in the Tosa dialect.” ...even though he really wants to make lots of friends! But his complex is revealed to Aina, a good-looking classmate and the center of the partygoer crowd, and for some reason he forcefully offers him a lesson in standard Japanese! At school, Aina seems unapproachable, but his gentle guidance and almost zero-distance skinship make me more than longing to meet him. In fact, Aina also has hidden feelings for Noda...? Student romance is full of kyun! The cuteness is enough to make you faintt in agony! The secret lesson of overcoming the accent of an unaware sexy city person and a purely naive country person begins!

https://www.cmoa.jp/title/302203/?srsltid=AfmBOoqHheqYrzcHEs1IRciRlTKOLcGjDXWXj2VhRk7NPdeRO1qoCBNw

Layla, an ice lady whose facial expression is as immovable as a mask, has a secret. She has a mysterious constitution that allows her tears to turn into a single jewel. Her family exploits this power and bullies her daily, causing her to close her heart and lose her emotions. However, one day, when she finally reaches her limit with her family's mistreatment, she reunites with a young man who asks her, "Layla, will you become my wife?" This Cinderella love story follows the scheming count as he dotes on her to the point of melting, and her once-hated power begins to shine like a jewel!

Exactly what it says. Mc's male roommate turns into a girl.