Bright Burst is the son of Flash Sentry and Sunset Shimmer. He enrolled into Celestia’s School for Gifted Unicorns just like his mother, however, this meant that he also went down the path of evil like his mother. Celestia, Luna and Sunset Shimmer had come to an agreement to expel Bright Burst from the school, but Bright Burst overheard this, and in his rage, used his magic to kill Celestia and Luna. Flash Sentry had been informed of their fates and despite Sunset’s protests he had to send Bright Burst to Tartarus. Unfortunately, Bright Burst escaped his father and the other guards and found the crystal mirror that lead to the human world.
 
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