The midnight romance in HagwonThe midnight romance in Hagwon

Seo Hye-Jin has worked as a Korean language teacher at a private educational institute in the Daechi-neighborhood of Gangnam for the past 14 years. The neighborhood is known as the most competitive private education area in the nation. Recently, Seo Hye-Jin has agonized over her future post-teaching career and her past dream. At that time, her ex-student Lee Joon-Ho appears in front of her for the first time in 10 years. When Seo Hye-Jin taught him, she did her best to teach him and he made it into a prestigious university. That helped give her fame as an instructor. Lee Joon-Ho quit working for a big company and begins work as a rookie instructor at the same private educational where Seo Hye-Jin teaches.