A tragic accident leaves an ambitious prosecutor with the mind of a child – forcing him and his mother to embark on a journey to heal their relationship.

The series follows the bittersweet relationship between a banchan shop owner whose daughter enters the war of Korea's college entrance exams, and a top hagwon instructor.

About Han Yi Na who is an 821-year-old vampire who can’t stand seeing injustice. When she unexpectedly becomes a trendsetting influencer with over a million followers, Han Yi Na uses her power to secretly help those in need.