The True Demon Slayer (Kimetsu no Yaiba harem X Male Demon Slayer Reader)

Prologue

(16 year old Y/n's P.O.V)

As I was training on my backyard with my wooden double swords, my father come up to me.

"Hey son."

"Hi dad. What's up?"

"Did you train well with your mentors?"

"Yes dad. They said I'm improving a lot." I said smiling.

"Good. Because I need your sword techniques."

"Why?"

"My old friend from another universe is in trouble. I'm busy with dealing with something while your mother is pregnant with your little sister." Dad said.

"Seriously?" I said.

"No I'm not."

I sigh.

"So what universe is it then? Big bro Takeda and Big sis is in RWBY, Evan is going to the Navy, Crimson is now protecting both worlds."

"The Demon Slayer world."

That got me surprised.

"So uncle Urokodaki is in trouble?"

"Worse. Muzan is scheming there and is up to something no good."

I clenched my swords. That bastard! He's the reason why Tanjiro's family, Shinobu, Muichiro and Rengoku got killed!

"Do you still remember the three breathing techniques your mothers have trained you?"

"Yes. Ice, Heal and Light."

"Your real swords which Haganezuka are forging are waiting for your arrival. Be careful."

"I will." Right then after that, I went to the portal and transported to the new world.

(??????'s P.O.V)

I looked at my son going through the portal. I hope Urokodaki is doing okay. His age is still unstable despite his energy.

"Is he really gone?"

"Yes my love. He has transported to another world to save the universe and stopping Muzan."

"I swear he's got the attitude from you."

"Says the woman who eats meat and noodles non-stop."

She blushed.

"That was before I was pregnant with Saki!"

I chuckled. She's got that appetite from Y/n alright. He really loves Udon.

"Sorry Akame. You did train our son well with my other wives."

"What kind of mother am I without training him to become one of the most powerful swordsman like his parents?"

"That's why I love you." I kissed her.

"I love you too...

...my Crimson Knight."

"I haven't heard that nickname since high school and that incident 24 years ago."

She then tugs my collar closer and whispers in my ear.

"Maybe I should call you Daddy in bed~❤️. This time we'll role play. You'll be the teacher and I'm a naughty student who needs extra credit."

I smirked.

"Bahamut?"

"I'm right ahead of you, partner."

I winked at the readers, then carried her to our master bedroom with my other wives to have some kinky sex.