Jain

Hm...Touya Kouyo, being Ogata's teacher, ought to be referred to as Touya-sensei. While you could argue that Ogata's thoughts are less reverent, I don't think that with Touya-sensei's personality, even Ogata would dare think of him as anything but "Master". It also makes the readers better differentiate between the two Touya's. I admit that I had a little trouble following because of this, since Touya is often assumed to be Touya Akira in fandom.

That was the only problem that really stood out.