The psychiatric ward on the 20th floor was cold and silent, with iron windows blocking all exits. Chu Yuxi thought that she and her new roommate Xie Qichi had gone from strangers to each other in the ward, from grabbing a glass of water to sharing a candy, sharing the twilight and the sky. Until the nurse told him: the four beds were always empty. His entire daily life while hospitalized was an illusion created by his brain to resist the truth that his lover had jumped from the building. He has been living in memories, falling in love again with someone who is long gone. When the boundary between reality and delusion completely collapsed, he chose to walk to the rooftop on the 20th floor - to the daylight that never ended.
