Thai adaptationTimid and clumsy Atom has a crush on Matmi, the girl who sits next to him in class. He despairs when he borrows her eraser and sees she's written the name of another boy—Kongthap—on it. To make matters worse, Kongthap sees his name on the eraser that Atom drops and thinks Atom has a crush on him!
(Source: Kieta Hatsukoi MyDramaList; edited by MyDramaList)

Both have younger guy and older guy relation ship. Boss and emplye relationship. In both younger man try to prove yourself to the world.

Both series have protagonists with a specific form of supernatural disease where only a small number of people around the world suffer from this rare disease. Both series also contain the idea that only their soulmate can help them in this disease.

Both series have protagonists with a specific form of supernatural disease where only a small number of people around the world suffer from this rare disease. Both series also contain the idea that only their soulmate can help them in this disease.

His childhood first love, Choi Jun, who disappeared without a word, returned as a hot general manager! An office rom-com about idol-turned-intern Lee Jun and Choi Jun, a heart-fluttering genius director.

(Source: Korean = Naver || Translation = MyDramaList) Edit Translation

Two best friends from school were separated for several years by a misunderstanding. Now, after years, they accidentally meet for work and have a chance to explain everything.

Korean original story
A story about what happens when two men who have been friends since school days meet again at work and create a dating simulation game.

(Source: Korean = movie.daum.net || Translation = MyDramaList)