I can say this story is about triangle love. GD loves Seungri. Seungri loves Taeyang. Taeyang loves Seungri. So definitely SR is the main actor. Youngbae (Taeyang) and GD are best friend forever.

TAEYANG

He always shares his feeling about SR to GD. But he didn’t know that GD has the same feeling as YB towards SR.YB has to face a big problem when he didn’t know how to express his love to SR. He thinks one of the ways to get SR’s attention is by hurting him. He just wants to see SR’s reaction and from that he’ll know SR’s feeling towards him.

G-DRAGON

YB’s problem is actually gives advantage to GD, the most sensational guy ever. For him, SR just didn’t realize how special it is between them -how powerful the feelings are. He’ll make sure no one is going to stand in his way even his best friend, YB. However, at the end, he notices that SR’s true love is only for YB and he accept it.

SEUNGRI

SR soon finds out that it hurts when someone you love doesn’t love you back especially when the love turns into an obsession… He also wants to do something to test YB love towards him. He also believes this is no ordinary love but something sent down from heaven. He respects GD as a leader but he can’t lie to himself about his true feeling. He knows that he only loves YB no matter what.