Noragami

In a dark, purple-lit forest, a female character with long dark hair and a sword confronts a male character with spiky hair, who is holding a glowing purple blade; the scene cuts to a close-up of the female character's determined face, then to a close-up of the male character's wide blue eye as a thin, dark line, resembling a blade, moves across his face, suggesting a near-miss or a moment of intense focus during a confrontation.