Hanju, who has always struggled to blend in with others, has lived life on the outskirts. Upon entering university, the only person he grows close to is Chanyoung, forming an awkward partnership that leaves their relationship in an uncertain state. Then, Ji-hyun appears. As the people around him suddenly begin to change, and unexpected incidents continue to unfold, Hanju gradually starts recalling memories of his past entanglement with Ji-hyun…