Masterpiece - A cut above the rest

This one is not perfect... It does have some loopholes, and shows that it is the author's first work.... But the concept is quite fresh and the characters are awesome... and the tension is real... Until the very end, things were precariously off balance and there was a real chance that everything could go very very wrong.....
Beautifully done... Shows the author has real talent....
A very different manga that gives edge of the seat entertainment.
Warning: superstition, horror, psychological

Adapted from a very well-written novel with beautiful art - Jang Jaeyoung, a design student and Chu Sangwoo, a computer science student are opposites that had only 1 thing in common - they attended the same mandatory course and were assigned to the same group project. It ended with Jaeyoung failing the subject, having to stay back for another semester and missing his opportunity to study abroad. He starts off blaming Sangwoo and sets out to take revenge in a very unique way...