Sunny and Taeyeon were best friends, as close as they could be. The same goes to Donghae and Siwon. But when Sunny and Taeyeon had a crush on Siwon, the story goes upside down. Donghae, who had been jealous of seeing Sunny with another boy, was angry when he knew about her crush. Sunny and Donghae's relationship was neutral, or perfectly nothing. But Donghae couldn't stand seeing Sunny with someone else, but what could he do? Genre: