 Thanks to Dong-ju, mother and son finally meet for the first time.Meanwhile, Jeong Yun-ha (Kang Byul), the brightest pupil in class, has taken a liking to Wan-deuk after splitting with her boyfriend Hyeok-ju (Kim Dong-yeong).When Wan-deuk takes up kickboxing to funnel his aggression, Yun-ha helps him.