Secrets and answers (Rin okumura x Oc)

Prologue

I slightly run to mom and gave her a hug. "Mom, can I be an exorcist?!"
Her eyes widened in shock and gave me a soft look. "I want you to be successful like other people."
I gave her a sadden look and let go of her, yet she started crying. She sat down on the sofa while I patted her head. "It's okay....i'll be brave..."
I lied.
I was scared in the inside and out, yet daddy said he got over his fear cause of this. Plus being normal is boring!!!
She went close to my ear and whispered something. "I will always love you, Saki...."
I touched her forehead and whispered something back. "I love you too, mommy."
She gave me one last kiss and popped up with a smile "OK, FOR DINNER WE'RE HAVING CURRY!!"
She ran to the kitchen and started chopping. "Sweetie, can you give me the plates in the basement."
I ran to the basement and got the blue and white plates, yet I stood there looking at a sword. A dusty, brown looking sword that actually caught my eye. I walked closer to it really wanted to touch it.
Just one touch.....
"SAKI!"
Dad!
He held me tight away from the sword. All the plates scattered on the ground and heard one word from the sword.
Satan.
I clenched his shirt and started crying, mom came in a second I was crying. "What the heck is going-" her eyes widen in shock looking at the sword. "Honey....I thought you thrown that away." I look at mom then the sword in confusion.
Dad took me into the living room checking me if I was ok.
"Dinner's ready." Mom put all the curry on the table while we was eating.
TIME SKIP
I couldn't sleep after what happened in the basement. But somehow I was addicted to that sword. I went down the hall with a flashlight in my hands.
I quietly walked down the stairs trembling in fear, yet a creak came down the stairs, continuing every step.
Creak
Creak
Creak
Until dad came out with blue flames behind him.
Until then I knew he wasn't the father I knew......