Age:11 (originally human) 20 years old physically (upon being turned into a demon) but he is way much older then he looks arguably about in his 500 hundreds years older Child human looks are below
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demon looks after a certain incident happened
world of origin/history:Demon slayer Taisho period
Weapon:flesh nichirin katana
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Ethan's katana that is forever bright red after he became a demon and covered it in his own flesh
breathing style:Sun breath/breath of the sun (demon slayer universe exclusive)
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