His Fourth Wife [Tengen x Reader]

Prologue

Y/n, a normal 15 years old teenage girl... Or that's what everyone thought...

Y/n had beautiful e/c coloured eyes, mid thigh lengthened h/c coloured hairs, 5'3 feet tall, even though she was still in adolescent period, her body was like a woman who is in her 20s, her face was slightly chubby but having a sharp jawline, slightly tanned coloured skin, soft plumpy full peach coloured lips and her behavior was gentle like wind. Her parents were very much abusive towards her after her younger brother was born, Hito, who is 5 years younger than her.

Once she encountered a demon when she tried to escape from her home at the middle of the night.

1 month ago before she turned 16 :

As she escaped from her house and was passing through a jungle she encountered a male demon, luckily there was a mission in a nearby village for a Hashira, so when he was passing by, he heard the sound of a girl somehow whispering out for help, thanks to his keen hearing ability.

He was able to behead that demon just in time before it could launch towards her.

When she saw that man slaying the demon at ease, she felt a wave of relief washing her body.

The male sat at her eye level while she patted her head to make her feel a bit comfort.

"Thanks... " She muttered out.

"What is a fine maiden like you, doing in this jungle in the middle of the night? " The male asked as a slight twinkle was heard when the breeze blew and hit his jewellery.

"I... Ran away from my home... "

"Hmm? Why so, dear? It's fine if you don't want to tell me though... But remember don't travel in the night time at scheduled areas, this man-eating demons lurked around in the night time... "

She kept silent for a while before she got the courage and asked, "Who are you can you give me about your identity, Mr? "

"Well I'm a Hashira, one of the strongest slayer in the whole demon slayer corp. My name is Tengen Uzui... And yours? "

"Y/n..., Y/n L/n... Can I also join the corp like you? " She asked in hesitation, maybe she have a hope to live after she escaped from her home. The purpose to save common men from the man-eating demons.

"Umm... Won't you be afraid when you face them again? "

"No... I won't... I promise... "

"Very well then... You can join the demon slayer corp... And... You will train under me as my tsukogo. Okay? " He asked as he helped her to stand back on her feet.

"Okay, Uzui-sam-" Her sentence got cut off by him.

"No need to be that much formal when we aren't training, you can call me Tengen, Y/n..."

"Okay Tengen-sama. " She said with a smile.

"Hmm... Now you should go back to your home... I'll train you everyday out of everyone's notice. And I promise you that you'll be able to get away from your home soon after your next birthday. Care to tell me when it is so i can prepare? " He asked softly.

"Umm... I'll turn 16 in 2 months... "

"Very well... See you from tomorrow then. "

He helped her to sneak back at her home and decided to train from tomorrow after her parents and brother are asleep, after 11 pm. 

End of Past POV

Now it has been 1 month since that incident happened. She would sneak out from her home at 11 pm to go to that jungle to meet him there and train. Little did they realised that this wasn't going to be only a student and teacher's friendship or best friends, it might soon become something else.