A Promise Made Under the Sunlight Episode 4

Kei has been working on a program to predict where the demons will strike, and it seems that the next probably location is Himeno's home. Determined to stop it, Hajime, Mannen, and Shin run off to try and locate the demon, and Himeno is right there for the quest. Unfortunately, so is the family butler, Mr. Tanaka, who is more than willing to help, and introduces the group to some of the houses more interesting sides.