"Don't worry about it now. I've managed to replicate a way to create seal marks all over this household to ward her away," Umiya explained, explaining tat she had set up some defense system to keep the Witch from doing anything with them here.
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"Yeah, it's going to be a lot. Listening through the lectures is going to be the hard part," Takahisa said, and referencing the lectures that Nero would always give him on Spirits and Demons. It was quite a lot to do on a normal basis.