Aoi Boy has led me to a downtown with some small workshops. You can reach the slum quarter after going through several streets from here.
"Sensei! Are you inside, Sensei"
"Maybe he's sleeping?"
The radar shows me that there's a luminous spot of a person inside.
Since the door seems to be shut with only bolt, I smoothly open it with [Magic Hand].
"It's open."
"Huh? You're right--. Sensei! It's me Aoi. I'm going in"
Aoi Boy skillfully evades the scattered written memos on the floor and goes in further.
I knit my brows when I look at the scattered memos on the floor. The double-inversion disk-type aerodynamic engine that I've made with a different theory and a circuit with different layout is drawn there.
"Echigoya-san, this person is Professor Jahad."
"I often heard about your name in the past."
"Hmph, I don't need some lip service."
Aoi Boy introduces me to a white-haired old man with bedhair wearing glasses that look like bottom of bottles. He has no special features besides his small stature despite being a human.
He's the rumored magician who's crazy for spinning things, and the person who wrote the books I saw in Seryuu city whom I had wanted to meet once.
I take out his works and the spinning top that he's created from Item Box to show him that it wasn't some lip service.
After seeing his works, he returned them back to me while hmph-ing, but his attitudes softened somewhat afterwards.
It seems he was a member of both the Royal Academy and the Royal Research Institute, but he fell into the trap of some researchers with noble lineage and was snatched both titles.
Now he's living a poor life by repairing magic tools in the downtown without any financial supporter.
I invited Prof. Jahad to be a researcher of Echigoya Firm, but his reply wasn't favorable.
"Hmph, I don't care with money. If you want to hire me, bring me the new type aerodynamic engine! I would even sell my soul to demon lords if I could see the artistic splendor of that double disk engine up close."
"You won't backpedal on it right."
"Not."
I clear some space in the room with [Magic Hand] and take out a spare double-inversion disk-type aerodynamic engine from Storage. It couldn't fit into Item Box since it was too big.
I smile at Prof. Jahad whose eyeballs look like they'll fly out, and then we establish the contract.
This man will surely able to increase the performance of the aerodynamic engine even further.
◇
I leave arranging their rooms in the mansion, the laboratory, and all miscellaneous things to the new manager and Tifaliza.
The new manager seems to be happy about something, she's started taking actions gleefully.
Tifaliza is preparing documents about machinery indifferently.
The new type of aerodynamic engine is a national defense secret, so I've taken the one in Prof. Jahad's lodging and moved it to the new laboratory.
I've left him with the disassembly manual and the rough configuration.
The detailed blueprint only exist in the map of my memo column, so I'll be giving him the document about it later.