Hotori: Simply Wishing For Hope (Dubbed)

Suzu is a robot created to replace a deceased boy, receiving his memories through injections. He meets Hotori, a young girl with a degenerative disease that erases her mind. As they form a deep friendship over their opposite conditions, Suzu begins to develop his own identity, separate from the one being implanted. Hotori, fearing she will forget herself, makes Suzu promise to end her suffering, a request that tests the boundaries of their bond and what it means to be human.