Denpa Onna to Seishun Otoko, Hyouka Recommendations
After a session of careful thought, you can see that what the lead male characters are doing is pretty similar.
Presented like there are something supernatural going on, both shows are about myth busting in a world without the slightest existence of sci-fi elements. It's all about the idea of unconventional presentation of a very conventional, realistic setting.
Denpa Onna anime, as far as it goes, has nothing defying the laws of physics. No matter how it wanted you to think or feel about, there is not one. No saying about the original light novel as it might has some surprising revelation
Even though the MCs are different, the main heroine in both are great. It has a mysterious factor in it. I thought it was really good and similar