The Cat Funeral (2015)

Dong-Hoon and Jae-Hee (Park Se-Young) are ex-lovers. When they were together, they raised a cat named Gooreumi. After their breakup, Dong-Hoon looked after the cat. One day, the cat died. Dong-Hoon decides to call Jae-Hee and let her know what happened Gooreumi. They then meet for the first time in a year. To have a funeral for their cat, Dong-Hoon and Jae-Hee go out for a one night and two day trip together. Adaptated from a webtoon by the same name.