Ciel is a true saint who was set up by a fake saint and banished for summoning a magical beast. While living quietly in a remote forest with a fluffy magical beast, Ciel is suddenly proposed to by the duke and leader of the knights who came to defeat her. She immediately declines, but he does not give up at all! On the contrary, he finds himself being loved by her...?　
Ciel gradually opens his heart to him, but his boldness, due to his innocence, unknowingly agitates him. He wants to be a gentleman, but his reason is on the verge of collapse!