"You make a horrible parent"

Prologue

A meeting is being held in the Demon Slayer Headquarters. All the hashira's gathered around their leader Kagaya Ubuyashiki, bowing before him.

"Your services are greatly appreciated" Kagaya announced, he glanced over to Giyuu The water hashira "Tomioka Giyuu I have a mission for you" Giyuu raised his head "Yes Oyakata-sama"

"This letter," he said as he slid his hand in his sleeve and pulled out an envelope "It is addressed to you" Kagaya handed Giyuu the envelope

Giyuu walked over and took the letter, he bowed and returned to his spot in the corner. The water hashira opened the letter and read its contents

He was excited to open it, knowing full well who it is from. 'It's about time he contacted me, come to think of it. I've been too busy to contact him as well'

To; Giyuu Tomioka

From: Your husband

Giyuu, our daughter, is learning very quickly. She has already mastered the first form of her blood demon arts. Tell me, when will you be back? She has missed you and won't stop bugging me about it.

All I can hear from her is "Otou-san(お父さん) When will chichiue(父上)Come back?", "Otou-san why doesn't Chichiue come here anymore?" It's a hassle. If you truly care for her wellbeing, you must arrive at Infinity Castle by midnight, or else I cannot promise what might happen to her.

But if anything, I would be lying if I said I didn't miss you as well dearest. Please come back home soon

-(Muzan)

Giyuu let out a small sigh, then a smile. 'How cute' he doubts Muzan will actually do anything to the girl since he cares for her like his own but there's still a small possibility he'll do it. The raven looked up and noticed the other pillars staring at him.

He quickly hid his expressions and kneeled in front of their leader

Kagaya looked at him with a curious look "Is something the matter?"

"No, there's nothing wrong"

The ill man sighed, "This letter was found to be on a demon one of our slayers defeated, We didn't open it for your privacy but it appears to be from your...spouse, I'm sorry to say that something might have happened to them" Kagaya said in worry

Giyuu thought for a moment, a silly little thought about his "Husband" and Daughter getting hurt. 'Impossible, he's a king' The raven-haired furrowed his brows blinking

"Your mission is to find out what happened to them, and the citizens where your family lives. That would be all" And so Kagaya dismissed the Hashiras and shut the doors

They all stood up and looked at Giyuu ''My, my Giyuu-san has a wife? And here I thought he didn't even have friends'' Shinobu, The Insect Hashira said in a teasingly manner, which made Giyuu annoyed

 "You finally got action? How's married life treating you?" Tengen, The Sound Hashira asked with a grin on his face, both happy for Giyuu and a bit frustrated that he kept it a secret

Sanemi, The Wind Hashira scoffed and Obanai, The Snake Hashira Rolled his eyes. Muichiro, The Mist Hashira just looked up in the sky and let out a hum, probably already forgetting about the letter

Gyomei, The Stone Hashira put his hands together, tears flowing down his eyes. "Congratulations on your marriage Tomioka-san may you and your wife live a happy marriage," He said happy for the water hashira and giving him prayers

"He's a man"

"Huh-"

The Pillars looked at him with shock. "A MAN?!" Sanemi yelled out in surprise