Fate's Chains

AU Shadow is a guard in service to the princess, and his duty is to patrol the marketplace and capture thieves. However, after a strangely uneventful day, he has a chance run in with Vio, a smart young male who is a dancer at night, and a spy for the princess by day. This encounter changes both of their lives-not exactly for the best. ShadowxVio, RedxBlue, T for reasons