The Quintessential Quintuplets anime

A character with a clown mask appears in a dimly lit room, then the scene cuts to a girl with orange hair and a green bow reacting with shock against a bright background. The character reappears in a classroom setting, removing the clown mask to reveal a man with dark hair, then puts the mask back on. The girl is shown again, smiling and looking pleased. The man in the classroom continues to adjust the clown mask on his face.