Demon Slayer

A character with a white mask and a sword performs a slashing motion, followed by a close-up of an eye with a red, cracked pattern and a symbol, then a character with blue hair is shown in a bright, glowing environment, before the scene shifts to a fight where a character in a dark outfit with a white mask and a blue sword attacks another character in a green and black checkered outfit, the sequence ends with a character in a white outfit seen from behind, and then a character falling through the air surrounded by glowing blue particles.