Lin's friend, Airi, is being stalked. The three brothers immediately come to her aid, saying they'll take care of the stalker. They sneakily follow Airi around and soon find out it's not just a stalker that follows Airi around...
I have no explanation 
whatsoever for these guys.
Y no sabemos nada de estos tipos.
Y no sabemos qué decir de estos tipos.
E mais uns caras dos quais não sabemos nada.