Yandere Kingdom Hearts 3 x Female Reader

Prologue; "I have felt a feeling between of Light and Darkness, like is there a reason why Darkness is bringing people to despair, anger, sadness, hatred, heartbroken, and forgotten...." "It doesn't matter what if I go into the darkness, I will go into the light, save people from the darkness and bring them to the light of love and hope, even if it means that I will have to sacrifice my life to protect the people who I cared about...."