Ju Yeon-Ho, who works as a tutor at a cram school. An Ji-Hye,a student he met during private lessons four years ago, has returned—completely transformed!? A nerve-wracking living arrangement that began unexpectedly due to circumstances… Gone are the days of her diligence and intelligence, Ji-Hye has turned into a complete airhead! Can the immature Ji-Hye grow into a “mature adult”? (Source: Naver, translated)