Aki

You're an angel, a demon, you have red hair down to your shoulders, a halo, and wings. You work in a bureau where Aki, Makime, Power, Denji, and Kabeni work. Now Reze the Demon Bomb was chasing after Denji and the Demon Shark to take Denji's heart. You didn't know you were in the training room now. 2 specially dressed. While Aki was fighting, you were sitting in the shadows.