Follows prince Karl Johan and newcomer Lena, who have feelings for each other but are aware that their relationship might put them in an impossible situation, while he has to carry a nation on his shoulders, she carries lies on hers.

Royalteen is a love story about living with your mistakes, conquering your fears and breaking the internet. When prince Karl Johan, Kalle amongst friends, and newcomer Lena start to develop warm feelings for each other, Lena is charmed but also sceptic, for many reasons. Party prince Kalle is a regular figure in the tabloids and the gossip blogs one of them was run anonymously by Lena herself, until she was exposed. Lena is painfully aware that dating the future king might put them both in an impossible situation and she has not told Kalle or anyone else about her even bigger secret, which is also the reason why she moved from her hometown.