Kim Seokjin, Lee Jaehwan, and Lee Junghwan attended the same university. They were a best friends. Naturally, after they graduated they decided to celebrate. They combined their money and chose to go on a luxury cruise ship lasting two weeks touring Asia.

Seokjin met a cocky man named Kim Namjoon who kept telling him lame pick-up lines. Jaehwan met a quiet man and he was determined to get his name, and possibly his number. Junghwan met a man that stared out at the ocean with a guitar, pen, and paper named Jinyoung.