Karasu had no interest in humans until his eyes laid upon you...he knew he had to protect you.

It is not in his nature as a Tengu to do these kinds of stuff but he wont deny it, he fell inlove with you. He follows you around to make sure you're safe and out of harm's way.

Another day he watches you from afar but he notices another person coming at you from behind.

He quickly jumped in and fought them off, once the assailant ran off he turned around to check up on you.

"Are you okay?"