The heavy rain season in Neon City is always shrouded in a humid haze. The "Seventh Night Hotel" on the hilltop on the outskirts of the city is a mysterious landmark of the city - it is only open on the seventh day of each month on the lunar calendar. Legend has it that residents can realize a "secret wish", but will also be involved in an inescapable vortex of fate. The hotel is controlled by a mysterious consortium. Its internal structure is like a Möbius strip. The corridors will change direction over time, and every room hides the obsessive afterimages of former residents. Here, the boundary between reality and illusion is blurred, past sins reappear in the strangest ways, and "Seventh Night" is both an opportunity for redemption and a moment of judgment.