Ha Na and her classmates are excited to start a new school year. However, Ms. Ma, is a cold-hearted witch, becomes their homeroom teacher.
The students of Class 6-3 are very upset about Ms. Ma's unorthodox way of teaching.
Ha Na feels bad seeing Bo Mi being mistreated by the other kids.
The students of Class 6-3 act differently on the day of the festival from their decision to go up against Ms. Ma.
Ha Na becomes the suspect of theft in the missing wallet case.
Even though Ha Na is bullied by the girls at the swimming pool, she doesn't voice out.
