After Loki attacked NYC, Frigga had another child. Andrea. Thor saw you everyday and you loved him very much and enjoyed his presence. and mum and thor has hideen you from Loki so you dont turn into him as evil as him And you kept hearing about Loki from Thor who was actually quite fond of him and you got curious, wanting to meet him. One day Loki was brought to Asgard in chains and handcuffs.

You were 19 years old and and you were sitting on the thorne reading a book Thor was the prince and the heir and then mum aka frigga walks in the throne room behind her guards holding Loki with chains around his arms and legs