The revenge slayer

Prelude: Flamboyant Sound Training

 A month has passed ever since Kanae was put in a coma with no signs of waking up. It has affected the butterfly estate much. Shinobu started to smile in order to fill the void lift in her heart. Aoi became very stricter with the demon slayers in recovery. Kanao was unaffected by it. And Zenitsu began training ruthlessly in order to get stronger so he won't lose anyone else.

The following night, Zenitsu was speaking to Shinobu.

Zenitsu: Was it ever possible yo learn a second breathing style?

Shinobu: Oh!

She was surprised by the question.

Shinobu: To be honest, it's never been heard of mastering two breathing styles before.

Zenitsu: I was just thinking of ways to stop the demons. Kanae was defeated by a twelve Kizuki, and I I figured using two styles at once would overwhelm them and they would be at a massive disadvantage.

Shinobu: The next Hashira meeting is tomorrow. I could inform the Oyakata about your idea, and let's hope the other Hahsira will approve of it.

Zenitsu: Thank you very much Shinobu!

She patted her brother's head in comfort.

Shinobu: I will always support you Zenitsu. Now how about you go get some sleep? You've been training all day.

Zenitsu: Of course. Good night.

Shinobu: Good night.

(The next day)

Zenitsu and Kanao were sparring as Aoi, and the butterfly girls watch. Taking a break, Zenitsu has lunch by himself. But he begins to feel someone watching him. He looks around not seeing anyone.

Zenitsu: (I could have sworn that I heard someone there.)

??: White hair?

Zenitsu was snapped out of his thoughts and looked up to see a man close to his head.

??: Your looks and sword is flashy, but you don't fight flashy.

Zenitsu jumped because the man appearing before him didn't even make a sound.

??: What? You're telling me you never saw a shinobi before? You are oblivious.

Zenitsu: Shinobi?

??: That's right. I'm a "former" shinobi. My name's Tengen Uzui, the sound Hashira. For some reason, I hear about how someone training to be a demon slayer says something about mastering two breathing styles.

Zenitsu: You have?

Tengen: Yeah.

His scowl turns into a smile.

Tengen: And I think it's very flashy.

Zenitsu: Huh?

Tengen: It could be a very good idea for the demon slayer corps. I suppose you could try and learn it since it's your idea.

Zenitsu: I'm sorry, huh?!

Tengen: My sound breathing derives from thunder breathing, the breathing style that you trained under.

??: I think what Tengen is trying to say is that he wants to train you in sound breathing.

Shinobu said entering the dining area

Zenitsu: Shinobu.

He muttered.

Shinobu: The Oyakata approved of your idea, but only if you were the first to perform it.