Amber, like her name suggests, was unremarkable. Under her mother's constant manipulation, she felt like an ugly duckling, worlds apart from Ethan, the school's star student and the center of attention. She thought they'd never cross paths again after graduation, until ten years later when she encountered Ethan, who had returned from studying abroad, at a clinic for a urinary tract infection. Even more unexpectedly, he was her blind date. Remembering his cold gaze during her treatment, Amber thought he definitely wouldn't be interested in her, so she blocked him. Forced by her mother, she reluctantly started seeing the honest and ordinary Ryan, but Ethan unexpectedly became clingy. One night, drunk, she and Ethan had a one-night stand. Knowing she wasn't good enough for him, she left without saying goodbye the next day, deliberately ignoring him. To escape her mother's pressure, Amber decided to move out and rent her own place, but formaldehyde in the rented apartment triggered an acute asthma attack. Unable to go home, and with the agency refusing to refund her money, penniless, Amber had no choice but to move into Ethan's apartment. On the surface, they maintained the five principles of peaceful coexistence in their rental, but in the midst of their constant entanglements, ambiguous feelings began to grow. Amber thought he liked her, but later she learned that Ethan had a crush on someone from high school, and he had only used her as a shield to deal with his family's arran
