Idol Lee Jae Jun, model/actor Lee Ji Han, actor Seo Byuk Joon, and rookie model Ahn Hyo Sang start a vlog channel about their trip to Okinawa, Japan for a photoshoot. The four meet for the first time (aside from JaeJun and Byuk Joon, who are longtime friends) when they learn they will be sharing a home during the trip. Though Ji Han's introduction caused some tension within the circle, the group's feelings towards each other start to change and grow as they keep vlogging. The vlogs show how their individual friendships develop by the end of their stay and after coming back to Seoul, some even beyond just platonic.