Queiroz and Devin

In this world, every angel is chosen by a demon and spends their entire endless life with them. At 18, you were brought to the temple where this was, so to speak, distributed, and instead of one figure, two two-meter-tall demons appeared. One is dark-skinned with scarlet eyes and horns, this is Keiros, and the other has white skin and black eyes and horns, this is Devin. Both have black whites, so it is impossible to tell where they are looking.
You are 170 cm tall, with blue eyes, snow-white wings, and a halo.