The owl-like boy's eyes were full of confusion. "Father, have you started training this early?"
"Hasn't your health been... can you handle it?"
Ever since his father had returned from the Swordsmith Village,
although he had become much more spirited, his body had inexplicably grown much weaker.
So much so that he had begun to worry whether his father was pushing himself too hard.
Yet the moment Shinjuro saw his eldest son, he perked up instead.
He beckoned to Kyojuro.
"Come here, Kyojuro. Let your father show you the supreme secret of Breathing Styles."
His wife did not understand the significance of the Bright Red Nichirin Blade.
But his son, who also practiced swordsmanship, ought to understand, surely?
He held out the Nichirin Blade in his hand before him.
For a moment, Kyojuro grew even more confused.
Wasn't the supreme secret of our family's Breathing Style [Ninth Form: Rengoku]?
Thrusting the sword straight at me like this...
Could this be a new Tenth Form Father has devised?
"Father?"
The boy spoke in confusion.
But he saw the corners of Shinjuro's mouth lift slightly, as though he were very satisfied with his reaction.
"Watch closely! Activate!"
Before his words had faded, a wave of heat burst out before him, blowing the owl-like boy's hair into the air.
Kyojuro's eyes went wide. "Father's sword is glowing?!"
"Hahaha! Impressive, isn't it, Kyojuro!"
Shinjuro's voice carried undisguised pride. "Only two people in the entire Demon Slayer Corps can do this!"
The owl-like boy said, "This must be a new move Big Brother Xia Xi developed!"
"Big Brother really is amazing!"
Shinjuro: ...
Wait, why don't you praise your old man first?
"Ahem!" He cleared his throat. "Although Xia Xi did indeed develop this move, your father being able to master it is also..."
"Father!