THE BOYZ is appearing on the show "Happy Arrived At Our House", a show about abandoned dogs. THE BOYZ and other cast take care of these dogs. You can find more details about the show on our cast and summary here.
During the setting of the recording of the show, the production team was giving away mics and helping the members with the belt. It is at this moment that HyunJae naturally lifted up his sweater for the belt. The camera caught this moment and the boy's abs could be seen clearly!
Take a look at it for yourself!
His abs are quite impressive.
Are you watching the show?