Shall We Fight This Out?

...I know...

Name:Ain
Age:14
Gender:Female
Nature:Naive
History:Ain is a tomboyish girl.Her family was killed when she was little.She now travels around the world to find who murdered them and kill them.She's very certain at winning and never doubt herself.She can sometimes be cocky and rash but she has a good heart.She hates bad guys.Unlike anyone,she is the host of the Duo Skulls.The blue one is brutal and loyal while the other one:The red one is kind and helpful.Both of them has a mind of their own and decided to help Ain in quest to avenge her family's death.However,the red one on the other hand wants to help Ain for the greater good.It is said that IF the Skull Heart has been destroyed,so will the Duo Skulls.Ain does not know of this but the duo's do.