Atop Takamagahara.
After obtaining the "Fury Core," Kamiya directly moved Miss Mary's small shrine to the Dwelling of the Gods to get an upgrade from the craftsman older sister.
Sister Kaku with one hand on her hip and the other wielding a large hammer, her heterochromatic pupils gleaming, appeared remarkably divine: "Done. The cost of materials plus my labor, that'll be 2000 Soul Crystals. Thank you for your patronage."
A twitch appeared at the corner of Kamiyagawa's eye: "Wait... What cost of materials? Didn't I provide all the materials? And it's only been a few minutes; how is the upgrade already complete? You're making it a little too convenient to earn my Soul Crystals, aren't you?"
"You think I was too quick? Alright then, why don't you head back, and I'll give you the shrine tomorrow afternoon, if that makes you feel any better."
"No need, I was just grumbling for the sake of it."
As a technology monopolist, there really wasn't much room for negotiation with Kaku.
