Make a quote of Yotsuyahi, a demon, emotionally confronting his now-Demon Slayer brother, Kazoku.

"You may have become a Demon Slayer, Kazoku, but have you truly embraced your demon blood? Have you forgotten the pain we endured together? How can you stand there and deny our very nature? We are demons, brother, and the sooner you accept that, the sooner we can find peace in our cursed existence." - Yotsuyahi

Step 1: Begin the quote with an attention-grabbing statement:

"Brother Kazoku, I stand before you now, not as the brother you once knew, but as Yotsuyahi, a demon consumed by darkness."

Step 2: Emphasize the emotional connection between the two characters:
"Once, we were bound by blood and loyalty, but now we find ourselves on opposite sides of this endless battle."

Step 3: Express Yotsuyahi's internal struggle:
"Do you see the torment that ravages my being, Kazoku? The pain I endure with every breath as I yearn for the innocence we once shared."

Step 4: Showcase Yotsuyahi's resentment and conflict:
"You chose the path of the Demon Slayer, while I succumbed to the allure of power. Can't you see the tragic divergence of our destinies?"

Step 5: Reveal Yotsuyahi's feelings of betrayal and loss:
"I thought we would face the challenges of this world together, united against all odds. But now, here we are, mortal enemies torn apart by our choices."

Step 6: Convey Yotsuyahi's plea for understanding:
"Please, Kazoku, try to understand the internal battle I wage. I never wanted this darkness to consume me, but I cannot break free from its grip."

Step 7: Conclude with a somber realization:
"In this dance of light and shadow, my existence is an abomination. But remember, despite our differences, the bond we once cherished still lingers deep within my shattered soul."

Note: This quote is entirely fictional and created based on your request.