Upcoming MBC drama 'Triangle' released the second teaser, focusing on the good-for-nothing second brother as played by Jaejoong!

In this clip, he is seen running away from what looks like gang members in nothing but underwear, even looking like he has somehow "dug his own grave" at one point, showing that he is indeed the troublemaker of the family. �This teaser also introduces more glimpses of the female lead as played by Baek Jin Hee.

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Don't get too jealous of her interactions with Jaejoong when you check out the teaser above!

Tip: cassietimi