When Xia Xi led Tanjuro through a series of turns outside the Small Town and plunged into Tamayo's little house.
Yushiro, noticing someone had intruded into his Blood Demon Art, hurried over.
Once he saw that it was Xia Xi...
"You bastard Swordsman! Who was it who swore he wouldn't tell any other members of the Demon Slayer Corps?!"
Yushiro's face fell on the spot.
Meanwhile, Tanjuro, who had come as a guest, was rather bewildered by this reception.
After all, someone who dared speak to Xia Xi so rudely...
He really had never seen one before.
And this boy...
Through the Transparent World, Yushiro's internal structure, utterly different from a human's, came into view.
It made Tanjuro, who had already slain demons several times, frown a little.
Xia Xi smiled and offered a perfunctory explanation. "This guy's one of us, and he has quite a bit of research value."
Then he nudged Yushiro aside and explained to the Charcoal Seller.
"Don't mind that foul mouth of his."
"This kid has never eaten a single person, and like the lady of the house, he's an enemy of Muzan."
"You could call him an important future ally of ours."
Only then did Tanjuro suppress his doubts and nod gently.
He asked no further questions about Yushiro's identity.
Then Xia Xi turned back to Yushiro, who was still raging helplessly. "Oh, right, where's Mrs. Tamayo?"
Hearing this, the Watermelon-Rind Boy grew even angrier, veins bulging at his temples.
"Call her Miss Tamayo!"
Amid the commotion.
Tamayo happened to step out of the room, still holding the bandages she had been halfway through changing for Kuang Jin.
"You're back already, Mr. Kurumaji? And this gentleman is... hmm?!"
The next second, she froze on the spot.
She nearly dropped the bandages in her hand.