18 Again (2020)

S1E2 About the Things That Made You Smile

At 18, Hong Dae Young's son, Ko Woo Young, discovers that his kids are leading lives he never imagined, prompting him to step in as a supportive friend. Meanwhile, Da Jung participates in blind recruitment at JBC. During a night out with Ae Rin, she unexpectedly runs into her high school friend, Choi Il Gwon. On their journey home, Da Jung catches a glimpse of Woo Young, whose looks strikingly remind her of Dae Young.