Mianmian likes to play catch-up games at home and does not pay attention to the safety of the table corner. The elves who protect the little kingdom safely find out about this. They decide to give Mianmian a punishment to let Mianmian know the importance of the safety of the table corner and become a child who pays attention to the safety of the table corner.
Purpose: Prevent children from knocking into the corner of the table