After we left the Phoenix territory me and yublelluna went to deep forest in earth and build a mansion that deep forest for ourselves so no one find us and disturb us

And started training our training
I started utilizing Total Concentration Breathing used in Demon Slayers to increase their physical and mental capabilities to their maximum levels by inhaling the most amount of oxygen possible while utilizing a specific breathing pattern and many other techniques which does not exist in this world
One day me and yublelluna was hunting for the evening when I see a sliver haired kid about my age or 1 year younger but because of my excessive training I look much older then my original age then me who looked starved and was about an eat an apple

He then saw me and yublelluna approaching he started to run away we followed him I shouted
Riser :- heyyyy stoppp kidddd
Silver haired boy :- please dont hurt
Riser :- I am not gonna hurt you can you please and talk with us for a minute
Silver haired boy look back to us while running and shouted
Silver haired boy :- why should I trust you not gonna hurt me
Riser :- because if I want to hurt you
You're not able to run now
Silver haired boy :- what????
And in an flash I appeared before him
Riser :- now tell me kid who are you and why are you here and most importantly why did you think we gonna hurt you
Silver haired boy :- my name is vali I am running away from my grand father
Riser (in mind) :- fuccckkkkkkkkkkkkkkk this kid is vaaallliiiiiiii fuccckkkiinnnnggggh
WHITE DRAGON EMPEROR
River :- okay then come with us to our home my name is riser Phoenix you can call me Aniki Or big brother and she is yublelluna we are training in deep inside the forest you will safe with you
Vali hesitated but nodded
We went deep inside the forest vali and then suddenly stopped

Vali :- where are we where is your home
Riser :- we are standing in front of it
Vali :- where I can't se-----
Before Vali could finish his word riser raise his hand up and then the illusion despair
And Vali could see a big mansion in front of him

Riser :- you were saying something vali
Vali :- nothing
Riser chuckled at this
Riser :- came inside we gonna talk after the dinner and eat as much as you want Vali
I said with smiling face

Vali :- thank..thank you so much how could I ever repay you for this
Riser :- No need to repay me Vali after all from now on your my younger brother that I always wanted
Vali didn't say anything just nodded
Time skip
After dinner we where seating in the
living room

Riser :- now tell us Vali why are you running
Vali hesitated I noticed this
Riser :- don't worry Vali we are not gonna judge you
Vali after few seconds asked a question before started telling his story
Vali :- tell me do you believe in supernaturals
Riser :- yes Vali me and yublelluna are devils
Vali was shocked then started telling his story
Vali :- my name is Vali lucifur I am the descendant of the original lucifur
He tell us that He was born as the son of Razevan, the son of Rizevim and a human woman, making him a half-breed. Once it was revealed that Vali bore one of the Longinus, Divine Dividing, in addition to the power inherited from his great-grandfather, the original Lucifer, his father soon developed an inferiority complex toward his son who he viewed as a monster for holding those two powers. Because of the advice from Rizevim, Razevan started to bully and physically abuse Vali for his powers if he was so scared of him.
Although he received physical abuse from his father, he was loved by his human mother who would treat to his wounds, attempt to protect him, and fed him whatever she could even if it was pasta, which became his favorite despite the bland taste. Vali soon ran away from home before being found by us
I was so Shocked because I never knew the Vali had a rough childhood I started moving towards Vali and hugged him
Riser :- it's alright Vali I never gonna hurt you and I will always be there for you and not let anyone hurt you anymore
Vali was shocked then started crying loudly
Riser :- let it all out Vali...let it all out...

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Next chapter :- new family member