The Promise Kept Tae Young x Fem!Reader Demon Slayer x Turning Red

3

Status: Unedited

Published: April 5, 2022

"Don't pull my hair, asshole!" you yelled as you shot the Demon with Wisteria Poison.

The girl gasped in horror after realizing she couldn't move normally. Her arms started to burn which made her panic. "Rokuro-chan!" Enmu yelled.

Giyuu fed him his fist which made the demon spit out blood and saliva. "You're opponent is me, not my sister!" Giyuu defended you as you took care of your own opponent.

"What have you... done to me?!" screamed the Shadow Arts user, you only kneed her down in the stomach and giggled. You took your pocket knife and cut your left wrist, your fresh wound spurting out blood like SpiderMan all over the demon as you smiled.

"... And I burst into fla-a-a-a-a-a-a-a-

... Fla-a-a-a-ames!"

Hitting that splendidly high note, Lower Moon 2 is set in purple flames. You developed this technique from Nezuko's Demon Arts, only it's been combined with your talent in singing given as you can command anyone covered in your blood to die how you want them to through singing or speaking your command. Giyuu watches in awe, staring at the demon's burning body.

"Wow..." your brother muttered. Enmu took this as a chance to put Giyuu to sleep, growing a mouth in his hand. It whispered for Giyuu to fall asleep. However, you covered his ears. Giyuu didn't fall asleep, thanks to your sacrifice of letting you sleep instead. "Y/n!" Giyuu called out as he held you in his arms, passed out into a deep sleep.

You were holding something and Giyuu took them out of your hands.

"My mask from the Final Selection..?" he asked himself as you also were holding headphones to mute Enmu's Whispers of Forced Unconscious Sleep.

Giyuu stopped questioning further as he put on his mask and the headphones, playing your song, Toxic. Giyuu loves bass boosted music and so do you.

It became harder for the Sleep Paralysis demon to put him to sleep forever to Giyuu's gladness. Your brother continued to cut off the arms Lower Moon One kept sending towards him until he reaches the demon's neck. You still weren't waking up which made Giyuu concerned but still kept fighting.

As soon as your brother was only a few inches away from Enmu's neck, the demon just decided to stay still and let the Water Pillar cut his head off. Giyuu fell to his knees in exhaustion, looking over at your figure and limping towards you.

"Those were... such incredibly beautiful moves..!"

Giyuu snapped his head back at the Demon's head. 'It's still not dead?'

Suddenly, Lower Rank 1's head merged with the plane from the neck down, abandoning his former body. "Merging with this plane took some time but I finally did it after wasting your time!" the demon joyfully said.

'Shit! I can't protect all the passengers by myself!' Giyuu thought as he wielded his sword. He jumped up in the air in an attempt to behead the demon midair, but Enmu only laughed and sank inside the plane. Giyuu furrowed his brows in frustration. You were still sleeping and he was hesitating whether to leave you alone and fight the demon or just be hopeful that Lower Moon 1 won't attack the other passengers and just protect your area.

Giyuu felt a tap on his shoulder which made him flinch as he felt arms wrapped around his waist. "Giyuu, take care of the passengers... I know where to cut his head off," you whispered which made the Water Pillar sigh in relief. "I was scared that you wouldn't wake up again..." he admitted which made you chuckle.