what’s the plot?

Haebom suddenly goes missing out of the blue. Taesung goes crazy looking for him for months. Eventually, Tae finds Bom. But Bom is acting entirely different, claiming he has a new lover and he wants a divorce. It's all an act on Haeboms part. Taesung forces himself on Haebom. Eventually it's revealed the grandfather is to blame. Haebom doesn't explain why he left, the day he finally decides he will though the grandfather intervenes. The grandfather tells his men to gr*pe Haebom in front of Taesung. It doesn't get that far though because Taesung begs to let Haebom go in exchange he'll do whatever the grandfather wants. He accepts, Tae gives Haebom his ring back and leaves. Now Tae and Bom are forced to be apart again. Except Taesung is now under the grandfathers rules.