At Eighteen Episode 16 Finale Sub
18-year-old Choi Joon-Woo (Ong Seong-Wu) has gotten used to being lonely. He is not good at expressing his emotions, but he has a cute side. He transfers to a new school where he meets Yoo Soo-Bin (Kim Hyang-Gi). She is a top student, but her life is controlled by her mother. Yoo Soo-Bin dreams of becoming independent. After meeting Choi Joon-Woo, she experiences small changes in her life. Meanwhile, Ma Whi-Young (Shin Seung-Ho) is a student who seems perfect and gentle, but he suffers from a complex. He acts like a strong person, but he is really a timid 18-year-old boy. After Choi Joon-Woo transfers to his school, his life begins to change.