Synopsis：Shim Eun Ha (Seola), an astronomy student with an extraordinary imagination, discovers a mysterious spot on her ceiling that behaves like a white hole, pushing out love letters from an unknown admirer. Intrigued by this scientific anomaly, she begins investigating the source of these notes, narrowing her suspects down to two potential suitors: her childhood friend and the school's most popular guy. As she applies her scientific knowledge to unravel the romantic mystery, Eun Ha must determine whether her theories about the hole—and her potential love interests—are truly accurate. Her curiosity and unique perspective drive her quest to understand the inexplicable phenomenon happening in her own home. This is a 2021 South Korean sci-fi romantic comedy film directed by Hong Chong Ki.