Neko Tsukahara, the protagonist, finds herself at Tasokare Hotel, a unique establishment where the perpetual twilight creates a liminal space between life and death. The hotel serves as a temporary refuge for souls uncertain about their next step, unable to decide whether to proceed to the afterlife or return to the world of the living. Guided by the hotel staff, Tsukahara enters her assigned room, where items from her past may hold clues to recovering her memories.