Overview
Cast & Crew
Seasons
Production House
The Plot

A shy math teacher time-travels back to high school to win his lost love, competing with his younger self for her heart.

Run Time

1h 0m

Original Title

애간장

Genre

Comedy, Mystery, Sci-Fi & Fantasy

Country

South Korea

Language

Korean

Official Release Date

January 8, 2018

Available Via

Streaming on OCN

Seasons

Season 1
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