Oxygen: The Series

Gee, a fourth-year university student and orphan, works at a café while studying. One night, Solo—suffering from insomnia—visits the café just before closing. Gee offers him warm milk, and Solo finds comfort in both the drink and Gee’s smile. Meanwhile, Kao spots Pu (Pree) being harassed on a rainy night and follows him. Later, Solo—now a contestant in the university’s Star & Moon contest—sits outside the closed café, waiting…

Kim, a fujoshi and coworker at the café, fantasizes daily about her favorite customer couples (CPs). When one of them is secretly photographed, they confront Kim, suspecting her. At university, Solo isn’t interested in the festival, but asks Gee to come support him. Kao, meanwhile, tries to get Pu to attend the after-party. Solo plays guitar, and Kao sings… but who are they really singing to?