After I've finished researching the matter, I teleport back to the workshop in Kuro disguise.
There's an entrance to the sewer nearby.
Entering the door that's locked with a padlock, I descend into the sewer.
Swarms of bats and rats attacked me, but I haphazardly scattered them away with [Light Stun].
It's been a long time since I used this magic.
I fly through the sewer by relying on the map to collect filthy water with [Magic Hand] from 128 points including the places where the incidents happened.
I saw the remains of two monsters with red rope pattern.
Both are eaten by rats and insects, but there's a magic core in one of the remains. It's a magic core that's whiter than vermilion.
I collect both remains just in case.
I'll deliver them to the Royal Research Institute later.
Since I'm already close to it, I change into Nanashi like when I met Ga Hou, and intrude upon the place where the orcs dwell.
"Heya, nice to meet you. I'm not your enemy, so could you please put away that dangerous spear?"
"You do not have any choice but to die now that you've seen this place. Prepare yourself."
A young male orc wearing a hood over one of his eyes and holding a magic spear informs me so.
I grab the thrust spear that has left red traces behind.
It's a sharp thrust, though not at Liza's and Shiga Eight Sword First Seat's level. The magic edge is quite resolute too, some half-assed magic shield won't be able to block this.
"Impossible! Even Ga Hou could barely able to dodge my spear! Who the heck are you!"
I wish you asked that first.
"I'm Nanashi, a friend of Ga Hou who lives under Duchy Capital."
"S-so you're Nanashi-dono! I've heard about you from Ga Hou. Please forgive my rudeness earlier."
"Yeah, I don't mind."
Ri Fuu is an orc who's 200 years younger than Ga Hou.
He guides me into the village of orcs. There are a bit less than 20 orcs inside. Most are from the same generation as Ri Fuu, but there are three small orcs too.
It's late at night now, but for the orcs who live underground, the time when the surface people sleep is the time for them to be active.
"We only produce the next generation orcs when our members decrease. In truth, they are newborns after 150 years, everyone has been spoiling them, embarrassingly."
"That's not true! Ri Fuu is mean!"
Besides a bit of physical differences, the orc children look the same as human children.
"Thanks for waiting. They're feast brought by Nanashi-san. Everyone, you can eat after giving your thanks."
"""Okay!"""
I gave them ingredients I had bought in the Duchy Capital, though there were also a lot of different kind of meat and seafood from the labyrinth. They were most pleased with the Japanese Radishes from Kuhanou Earldom.
I ask the orc wives who are cooking orc dishes if there's anything strange in the underpass.