The odd thing is, Nezuko is, like, behind the curve on that one. Tenjou Tenge, two decades ago, had a character with the same gimmick. Mahou Shoujo Lyrical Nanoha had a character with the same gimmick one decade ago. Splitting the difference, Negima had one 1.5 decades ago.

If someone is complaining about it existing in Demon Slayer... They're not real anime fans. That's even aside from the fact that they need to grow up and let people draw what sells and what people want to draw.

The odd thing is, Nezuko is, like, behind the curve on that one. Tenjou Tenge, two decades ago, had a character with the same gimmick. Mahou Shoujo Lyrical Nanoha had a character with the same gimmick one decade ago.

If someone is complaining about it existing in Demon Slayer... They're not real anime fans. That's even aside from the fact that they need to grow up and let people draw what sells and what people want to draw.