surprise bitch

A character with silver hair and a white coat sits calmly, then the scene cuts to a blonde character in a white cloak holding a sword pointed at another character, followed by a close-up of the blonde character's face as he speaks, with the subtitle "Now, how are you going to gather the threads of your story, Mikaela Hyakuya?". The setting appears to be an indoor space with blue vertical panels in the background.