Character jeok bong

The way this character acted and with how he was written is questionable.

was their purpose just to get somebody who was annoying and hopeless?

Ha na made the guy she loved forget about her and he straights up going to hit on her. He was getting jealous non stop through the series, he's a straight up creep.

What did he actually offer to the group?  He can smell and he sucked at it, if that was annoying