The Midnight Romance in Hagwon

Famous star instructor Seo Hye-jin works until midnight at the academy like any other day. As she stares at the Hall of Fame in the lobby, Joon-ho's name catches her eye. He is one of her proud boast as she did her best to teach him, and he made it into a prestigious university. At the same time, Joon-ho decides to resign from his company and make a new beginning as a rookie instructor.

Even though Hye-jin tries to dissuade Joon-ho, he already passed the first written exam and is getting ready for the test lecture. Therefore, Hye-jin privately asks Ji-seok to disapprove of him. Meanwhile, Sang-sub, the Korean language teacher at Chanyoung High, makes a declaration that creates huge confusion among the students and academies.

A clandestine endeavour dubbed "Teacher and Student Sally Forth" sparks a covert tutoring session led solely by Hye-jin for Joon-ho. Alone in an office after hours, they exchange determined gazes as they delve into a specialized lesson. Meanwhile, the renowned Director Choi, also known as the White Haired Witch, sets her sights on expanding her academy.