Epin works alongside the Avengers, using her unique talents to complete missions and become a well known 'hero' even though she hates being called that. She loves her job, that is until she is given the role of babysitter to a raven haired Asgardian. To say Loki despised the Avengers was an understatement. So the idea of having some weak looking girl follow him around as his keeper was down right infuriating. As time progresses, maybe the two of them will change their minds.