If I recall correctly, he was investigating a case of creature like mermaid (succubus?) that allured men, she has bit of magic potential too.Let's not forget that Tanaka up until now has been set on Sophia as his true partner. Somehow though, I'm not seeing this work out, since the girl is terrified of him and his power. I'm still curious about what exactly the noble wizard had seen in her that piqued his interest; he did mention some kind of magic that she'd done, though all we'd seen her do is the clumsy maid effect 9000 on him.
Self doubt and low self esteem is kinda a great factor here, not only wouldn't notice attention but also would be suspicious of your actions, kidneys don't grow back after all...This trope is always so dumb to me; if I threw myself at a guy, I'm pretty sure we'd bang.
Actually, I never have done so because I know we would bang....
The idea that a pervert would be terrified of sex is just... dumb.