The Tuna and the Dolphin
Starring Park Gyu-young, Yoon Park, Jung Gun-joo, Kim Soo-jin, Heo Dong-won, Seo Yu-ri, Kim Mi Woo
Watch "The Tuna and the Dolphin" on Amazon released in 2018. It's a drama and romance movie, and has a rating of 7.1 out of 10 from Imdb which is usually fine for this kind of movie, and is currently only available for purchase or rent.