Gim Ju-yeon

Cheerful and mischievous, Moon Haet-nim is a freelance voice actor. She voices the main character, Happy Mong, in the lively children's animation Detective Happy Mong—a role that perfectly fits her personality. One day, while accompanying her friend Young-hee, who is struggling with depression, to a psychiatric clinic, Haet-nim takes a test out of boredom... The result? Depression?! This can't be real! In denial, Haet-nim embarks on a journey, just like her animated character, to uncover the cause of her depression!

One afternoon, when a comet is predicted to hit the earth, Su-in and Jae-hee, who did not know each other well, visit places they have never been before and get to know each other. The end of the world is gradually approaching, and they climb to the higher ground, embracing the moment of extinction.