The name Yoriichi Type Zero reminded Haruto of a name he had once seen in the scrolling comments.
Yoriichi Tsugikuni.
"He lived during the Sengoku Period?" Haruto's gaze fixed on the Sunflower Earrings hanging from the Mechanical Puppet's ears, and something clicked in his mind.
Those were the same earrings as... the ones Tanjiro wore...
Judging by the comments, Yoriichi Tsugikuni must have cast a long, dark shadow over the Demon King, Muzan Kibutsuji. Otherwise, his name wouldn't have sent comments like "Muzan's heart just stopped" flooding across the screen every time it appeared.
Then... had Muzan sent people to find Tanjiro because he was connected to this swordsman from the Sengoku Period?
Because of the matching earrings?
Was the Kamado Household descended from Yoriichi Tsugikuni?
Kotetsu scratched his head and muttered, "He was a very active swordsman during the Sengoku Period, that's true, but I don't really know much else. It was so long ago, after all..."
Perhaps Miss Tamayo would know about something that happened so long ago. Given her age... ahem.
Haruto helped carry the Mechanical Puppet to a clearing, while Kotetsu trailed behind him, muttering as he scribbled and sketched on a piece of paper.
"I've studied it for ages, and I still can't figure out how it's built. Our ancestors really didn't pass down even a scrap of their wisdom to their descendants..."
"This Mechanical Puppet is over three hundred years old. Won't it break if we start it up again?" Haruto gently set the puppet on the ground. "What if it does break? Can you fix it?"
"..." Kotetsu stopped scribbling, planted his hands on his hips, and snapped, "I'm only six years old! Don't expect me to know how to fix this big thing!"
He bristled indignantly for a while, then his shoulders