This paper toy is a chibi Mytho, Prince Siegfried from the story, The Prince and The Raven, written by Drosselmeyer, who shattered his heart in order to defeat the Raven, based on the Japanese The Ugly Duckling/Swan Lake-inspired magical girl ballet anime television series Princess Tutu, the papercraft is created by Larry-San.
Mytho is utterly emotionless at the beginning of the series so he seems unable to think for himself and listens to almost anything told to him. With the help of Princess Tutu returning his heart, he begins to develop emotions and slowly returns to the way he was long ago. It begins with negative heart shards only to get positive towards the finish. As Prince Siegfried, he is very brave and noble but as the Prince of Crows, he is deceitful and coarse towards others, even Fakir and Rue.
You can download this papercraft toy here: Princess Tutu - Chibi Mytho Free Paper Toy Download [Instruction]