Before he was a ghost haunting the walls of an idol's apartment, Lee Jae-hyun was a star in a different sky.

"Ghost of the Gymnasium" is the story of Jae-hyun's first life, a prequel that uncovers the deep-seated trauma that created the man we meet within the walls. We follow a fourteen-year-old gymnastic prodigy whose Olympic dreams are shattered by a catastrophic injury and a devastating betrayal.

Given a second chance at glory in the brutal, cutthroat world of K-pop trainees, Jae-hyun reinvents himself as the cold and perfect "Jaden." He learns that the politics of the practice room can be even more vicious than the competition on the mat, and that the spotlight can be more dangerous than the high bar. This is the story of how a perfect instrument can be broken twice, and how a boy can be systematically erased long before he chooses to disappear into the shadows.

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**Disclaimer: For Mature Audiences Only**

This series is intended strictly for adult readers and contains graphic content that may be deeply disturbing. The novels explore dark psychological themes and include numerous explicit, hardcore sexual scenes that involve violence, coercion, and dubious consent. The narrative is centered on intense obsession, stalking, severe trauma, and profound psychological manipulation, featuring toxic relationships characterized by possessiveness. Reader discretion is strongly advised.