Seohyun and Kyuhyun are secretly dating because they know that Yuri had a crush on Kyuhyun and Donghae had a crush on Seohyun. They tease them to be a couple because they are the SEA couple and they are the MAKNAE couple for a reason. Once Yuri and Donghae accidentaly saw each other in the mall they saw Seohyun and Kyuhun together too.... They team up to know whats going on. But because of they are always together to spy the two, something develop......