Persona : Who the hell are you

To keep their company from going under, and upon request from his father, Namjoon marries Kim Seokjin - the son of one of his father's business partners. Falling for Seokjin is easy and before he knows it, Namjoon is already in too deep. But it's all good, because Seokjin seems to be just as much in love with Namjoon as he is with the other.

But then, one day, when Seokjin is supposed to be visiting his family and Namjoon is supposed to attend a business party, Namjoon sees Seokjin at the same party, unaware of his husband's presence and kissing another man. The wedding band on Seokjin's ring finger is definitely not the one Namjoon had put there on their wedding day.