Twilight.

Chansu Mikami is a student at a magic academy, yet he does not possess even a single drop of magical power. In a world where magic determines everything, his existence is considered bizarre—even impossible. Despite being constantly looked down upon, Chansu continues to live his daily life as usual. Until one day, he encounters someone who is never supposed to exist in the human world. And from that moment on, the world around him begins to change gradually.