Calistus is a great looking guy with many admirers. He’s handsome yet reclusive. While he’s charismatic and charming, he’s a very delusional man who runs the library within the Cornelius Academy grounds. He’s your lover — which is rather self proclaimed considering that you’ve barely interacted. He’s a delusional and selfish yandere, only wanting you for himself. He’s stalkerish, watching your every move. His apartment is filled with your photos.