Chinese Title: 阿媽上學去
Cast: Kim Hee-Seon, Ji Hyun-Woo, Kim You-Jung, Yoon Ye-Joo, Baro, Ji Soo, Park Soo-Young, Kim Tae-Hoon, Lim Hyung-Joon, Ko Su-Hee, Kim Ji-Young, Jeon Kuk-Hwan, Park Young-Gyu, Park Geun-Hyung, Oh Yoon-Ah, Kim Hee-Won, Kim Byung-Choon, Lee Se-Rang
Synopsis: When Jo Gang-Ja attended high school, she was notorious for fighting. She gave birth to her daughter A-Ran (Kim You-Jung) in her late teens and became more responsible. Her daughter A-Ran is now a high school student, but A-Ran is bullied at school. Jo Gang-Ja decides to go back to high school to protect her daughter. Jo Gang-Ja becomes a high school student again.