Ideas I have for future stories

Demon Slayer x MHA

Demon slayer Au

Basically in the mha world, quirks don't exist but instead they have breathing styles.

The different breathing styles, total concentration and total concentration have been recorded into books along with how to do them. So when people rediscovered them, they started to use it for sport but these breathing styles got into the wrong hands and there have been people who have been using them for the wrong reasons.

People started rediscovering these 50 years after demon slayer takes place.

The government banned the usage of breathing styles unless you have a license or allowed to by a government worker. But total concentration and total concentration constant weren't banned due to them technically just giving someone a physical boost but don't actively harm people.

The special effects of breathing styles will be visible and actually affect others, for example: the water in water breathing is visible and can actually get people wet, fire breathing is hot and can actually burn things.

Demons still exist but it's hidden from the people and only demon slayers-in-training, pillars and the government actually know.

Demon slayers in training would be learning in UA and there are a lot less students due to a lot of examinees dying in the final selection so there would be students that won't be in Class 1-A .

Parents would also have to sign a waver that they were agreeing to allowing their child to take the final selection test and that if their child were to become permanently impaired or even die that they can't take legal action against the school and would just be given compensation.