"Ibu-kun, why did you tie this monster up and bring her back? What if she wakes up?" everyone asked worriedly.
By then, they had tied Mo Qiong up, dragged her into the mall, and bound her to a pillar, wrapping the ropes around her again and again, round after round.
They had wound dozens of kilograms of rope around her. They didn't believe the monster could still break free, but there was no guarantee she wouldn't breathe fire.
Still, only Izuki had killed a monster before, and Izuki was the one who had saved them. When it came to Izuki, they followed his lead.
Izuki didn't answer them. He merely stroked the Black Iron Sword and murmured, "Best..."
"You recognize this sword? Is it famous? The Sword of Best?" the High School Student asked, puzzled.
"It's completely black. Even when viewed up close, it has not the slightest texture. I once had the good fortune to see material like this..." Izuki said.
The High School Student stared at the black sword. "Material like this doesn't seem particularly special, though."
Izuki smiled. "It definitely weighs ten kilograms. And listen..."
Izuki flicked the sword's surface with his fingernail. A very strange sound came from the point of impact. It was extremely faint, and it didn't sound like metal being struck.
"That's the sound of my fingernail. This metal doesn't vibrate."
The High School Student took the black sword in amazement and tried it himself. It did sound strange, but saying that it didn't vibrate was too absurd. At most, the sound was simply too faint for him to hear.
Still, he found something to weigh it with, and it really was ten kilograms—not a bit more or less.
"That's amazing! Ibu-kun, you knew it weighed ten kilograms just by hefting it!" the