Campus Couples (2018)

Dongsu and Huang Young were campus couples before marriage.
One day, a couple who traveled by pension accidentally meets a college alumni couple who traveled to the same place.
The four people I met in a long time drink and tell the story of college, and the secrets of Dongsu and Huang Young burst into the stables.
The two couples are immersed in the old idea, and the ray Hwang Young makes a proposal to change partners…