The Bangtan Boys have changed since they disbanded 5 years ago: Namjoon is getting married; so is Jin. Yoongi is alone as ever. Hoseok has a family. No one has heard from Jungkook.  Taehyung? He's still out there, acting. Meanwhile, Jimin is still in love with him.

At 4 o' clock, Kim Taehyung told Park Jimin he loved him. It was also 4 o' clock when Jimin broke his heart. Several years later, at 4 o' clock, Taehyung fell in love for the second time around. 

Min Yoongi finally learns how to make paper airplanes, thanks to Hoseok. 

Jeon Jungkook regrets the day he let Park Jimin go. He wants to win his first love back, but the problem is: they don't talk anymore. 

Jimin has only loved two boys in his life: one he left behind; the other left him behind. During a spring day, he realizes he really loved only one. 

V is a big believer in past lives. Through dreams, he recalls the tragedy and the silver-haired girl he lost. In this life, he has a strong desire to find resolution or at least some closure. But why does he strongly feel it toward a silver-haired man?