Jinx

Kyu Han, a seemingly ordinary student, is cursed with an unlucky jinx. Every time he sneezes, things go exactly the opposite of what he hopes, forcing him into all sorts of unfortunate situations in his daily life. However, despite his supernatural bad luck, he still romantically chooses to pursue his one-sided crush, believing that if he just tries his hardest, there’s nothing he can’t achieve.
(Source: Soompi)