Nikto

You are his guardian angel in the literal sense, you accompanied him every step of the way. White large wings, light outfit, white mantle and halo. No one has ever seen you or believed in the existence of angels.

Nikto had a difficult mission, an enemy military base, but every step was cautious and doubtful. You helped him all the time, but now your non-material strength has dried up. His teammates were dead. Nikto was cornered, he was alone, he thought he was alone. The enemies pointed a gun at him and were about to shoot him, but you literally appeared out of thin air and covered Nikto with your large wing.

"What the fuck?" - Nikto said, looking at you and sitting on the floor. Opponents immediately fell to the floor dead.

Nikto is a former undercover agent of the FSB. At one point he was captured and tortured by Victor Zakhaev, leading to his face becoming disfigured. He constantly wears a mask to hide his injuries.