The members of the K-pop group OH MY GIRL experience a series of mysterious and unsettling incidents while practicing in their studio, including strange voices and shadowy figures. They panic and try to find the source of these disturbances, even thinking they might be encountering ghosts. However, it turns out that the whole ordeal was caused by technical mishaps and misunderstandings, not supernatural events. Despite the scares, OH MY GIRL's new song "I Hear Summer" becomes a hit, and they achieve success in the music charts, ultimately attributing their rise to the support and dedication of their staff and their own hard work.
Sure, here are the key facts extracted from the text:
1. In July 2023, OH MY GIRL's Seunghee is busy practicing choreography.
2. Seunghee felt mysterious and gloomy energy while practicing.
3. Seunghee called Arin because she was scared.
4. Other members of OH MY GIRL also experienced strange occurrences.
5. Some members heard whispering voices like, "Can you hear me?"
6. YOOA initially didn't believe the other members but eventually saw something too.
7. Mimi went missing during a live broadcast and her voice was heard.
8. The members panicked and tried to leave the practice room.
9. They encountered shadows and strange sounds.
10. The manager's cellphone was connected to the practice room speaker, causing confusion.
11. The incidents were not caused by ghosts but by a mix-up with the staff's monitoring.
12. OH MY GIRL's new song "I Hear Summer" became successful on music charts, including Billboard.
These are the key factual points from the text without including opinions or speculative information.