, by Gundam Kaizer.
This takes place in Kingdom Hearts: 358/2 Days
, with the premise that because Axel was sent on a mission the day before Xemnas found Roxas
, Larxene was chosen as Roxas's mentor instead
From there, Roxas begins to take on Larxene's aggressive nature, and things in the Kingdom Hearts verse start changing a bit more and more with each chapter....