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...
What? We're busy right now!
¡¿Qué?! ¡Estamos ocupados!
¡¿Qué quieres?! ¡Estamos ocupados!
O quê? Estamos ocupados!