Takamagahara.
Yesterday in Takamagahara, Kamiyagawa had rung the Chime Bell, and this morning, the Medicine Seller responded to the call and returned.
Seeing that the old friend's purpose was to buy medicine, to purchase the "Kidney-Strengthening Nine-Flavor Pills" that Uncle Yuuki needed.
Given Kamiya's current stock of Underworld Currency, such a small jar of pills was quite inexpensive, only costing 650 Soul Crystals per jar.
He bought four jars to take back, to be used as tuition fees for Uncle Yuuki later on.
Apart from the kidney pills, Kamiya also picked up a dose of Elixir of Life Purple Gold Frost.
"Money and goods exchanged."
The Medicine Seller took out the medicine from his large Medicine Chest and received nearly ten thousand Soul Crystals.
"Hold on. Medicine Seller, there's something else I want to ask you."
"You have but to ask."