You will be forwarded to my stories on fanfiction.net.
Shizuru is a well-known doctor and she found a formula with which you can give a human supernatural strength and a monster as a guardian. Of course an evil organisation tries to steal it. Therefore her boss paid a bodyguard to protect Shizuru.
And guess who this might be !!
I give you a little hint. The first letter of the name is N! ;)
Natsuki Kuga is a respected doctor at a hospital in Fuuka. One day her superior told her that they would get one new apprentice and she should train her so that she could become such a great doctor as herself. That of course made Natsuki very nervous because she has a secret no one knows about. What if this apprentice gets too curious. Find out!