Sulli is once again at risk for being exposed as a girl pretending to be a boy.

On the Wednesday episode of SBS' "To the Beautiful You," Jae Hee, played by f(x)'s Sulli, becomes a victim of very inappropriate behavior from an upperclassman who was repairing the cabin that they were staying at during their trip. 

Jae Hee, who was unaware that the upperclassman was spying on her, changes clothes and the upperclassman believes that she is a girl and tries excessive physical contact with her, upsetting Tae Joon, played by SHINee's Minho, in the process. The upperclassman tries to get some alone time with her or touches her body inappropriately and he also opens her door, which she locked in order to go into a spa. 

Just in the nick of time, Seol Hanna, played by Kim Ji Won, appears and takes her away from the crew, not allowing the upperclassman to verify her true identity. Viewers are wondering if Minho, suspicious of the upperclassman's behavior, will come to Jae Hee's rescue if things go even more awry.

The episode also showed Eun Gyeol, played by Lee Hyun Woo, fighting with his newfound feelings for Jae Hee.