Divine Doctor Comes Down the Mountain: Nine Senior Sisters Dote on Me Alone

[Urban + Divine Doctor + Overpowered Protagonist + God of War + Master Descends the Mountain + Senior Sisters + Ruthless + Dark Transformation] My master passed down the Heavenly Prison Divine Needles. One needle can restore flesh to bare bones; another can slay gods and demons. But he never told me that using them comes at a price. Every time I use the needles for revenge, I lose something: a memory, an emotion, a sliver of my humanity... As I grow stronger, I also become... less like myself. My nine senior sisters are no longer protecting me as I seek revenge. Instead, they seem to be searching desperately for something, as if trying to suppress the “thing” awakening inside me. Their “special treatment” of me feels more like a cautious “seal.” Hatred is my only signpost, but at the end of this road, what awaits me: the truth, or a monster that devours everything?