Epsilon

Epsilon summary:

Kang Seong Woon was a poor but ordinary college student. Suddenly, his mother goes missing, and he is forced to do anything for money. He takes a break from school and starts working as a part-time when a mysterious person named Seo Beom-eui appeared before his eyes. He thought the man was just a random annoying bar customer, but for some reason he keeps ending up by Seong Woon's side, and a superpower organization is also keeping an eye on Seong Woon... Will Seong Woon be able to return to his days as an ordinary college student?