The name "Tweevils" is derived from the Greek word "tweed", which means 'we will not stand down.'
The Tweevils consist of Vanessa and Akeem although, ironically, they are not twins. They met at the café where JK Rowling wrote the infamous "Harry Potter". There they struck up a conversation about how the weather is in Moscow. From then on, they formed an alliance and an obsession with Moscow; vowing to never back down from protecting and defending Moscow.
Vanessa and Akeem have a dark history each before the fated meeting at the café, though they never mention what exactly that entails. It is suggested that Vanessa's past revolves around an ill-fated gluteus maximus surgery. Akeem's past is completely unknown, shrouded in upmost darkness never to be penetrated by the human mind.