Anime Mashle

A black silhouette of a man in a suit stands against a yellow background, making a fist with his right hand, then extending both hands forward in a punching motion. The scene transitions to a line of identical silhouettes against a pink background, then to a line of silhouettes against a purple background with the text "Filling Bang Bang Bang" in yellow above them. The background colors shift from yellow to pink to purple, and the number of silhouettes increases from one to a full line. The text "Best anime opening" is displayed at the top of the screen throughout the video.