This story is about two girls who can't be any more different. But there's one big thing both have in common: they love swimming. The warm liquid embracing their bodies are all they're craving for. But the thing they love the most can become the most dangerous thing ever.
Sulli met Amber inside the comfort room. She slapped the tomboy thinking that she was a real boy. Now, she needs to do something for that slap she made.