Messiah

The black-winged angelic android created for one purpose only: to destroy the Earth and all the miserable people who went about their lives in spite of Dr. Ashino's suffering. Incidentally, before his memory chip can be properly finished, he makes contact with Chihaya, who shows him his identical black wings. Messiah becomes confused, but decides that what he truly wants is to protect Chihaya, at all costs...