TWICE have gone back to high school and they have all become classmates. It is the first day of school and TWICE introduces themselves to each other. Each episode features a TWICE member playing a different teacher. Jeongyeon is absent in this season due to a 'field trip'. Their homeroom teacher is Ms. Park Jihyo. The day starts with Korean teacher Ms. Kim Dahyun where they learn how to write poems. In their second period, they learn how to draw with creativity with art teacher, Ms. Son Chaeyoung. In their last period, they have music class with their music teacher Ms. Park Jihyo. During each of the classes, TWICE has to collect as many stickers as they can from each of their teachers, and the member with the least amount of stickers will receive a punishment.

• Im Na-yeon
• Yoo Jeong-yeon
• Momo Hirai
• Sana Minatozaki
• Park Ji-hyo
• Mina Myoui
• Kim Da-hyun
• Son Chae-young