Kyra is a bounty hunter who spends her days serving the ponies of Equestria by ridding the world from all manner of evil-doers. Bandit gangs making roads unsafe? Kyra will solve your problem. Monsters causing a panic in your town? Kyra can handle it for you, no problem. Need someone to get rid of that annoying neighbor without drawing attention? Find somebody else.

In case I wasn't clear, Kyra's a bounty hunter, NOT A MURDERER, you nut job! In fact, that's why Kyra retired. She's had enough of solving other pony's problems, and it's time she took a well-deserved vacation. Unfortunately, she'll find that quitting won't be as simple as she thought.