Yushiro is the loyal servant of the female demon Tamayo and is the only demon created without Muzan’s censorship.
Part of Yushiro’s Blood Demon Art is in the form of stealth and tracking support.
Because he was a relatively young demon and his Blood Demon Art was quite complex, at the time he met the Tanjiro brothers, Yushiro had not yet perfected it.
Another part of his Blood Demon Magic skill is the combat form.
Over time, Yushiro has increasingly perfected his skills and they play a significant role in the current decisive battle with Muzan.
Instead of using pins, his talismans changed to string.
It didn’t stop there, by killing Lady Tamayo, Muzan successfully angered Yushiro.
In a moment of anger at being cornered, Muzan decided to kill the Upper Four Nakime to destroy the entire Infinity Fortress, killing everyone trapped inside.
By pulling the battlefield out of the ground, Yushiro created a great opportunity for the Corps to destroy Muzan.
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