City Ninja

After three years of not seeing each other, two friends are finally re-united. But unfortunately, their reunion is short lived and one of them is tragically killed.
The other friend has little memory of what happened, except that her friend is dead and she is alone - again. She resolves to avenge her best friend's murder and kill her killer. But she doesn't know that her friend has joined a world that is unknown to her.
But what that entails, she has no idea.