You were walking at Soul Society in middle of a sudden execution of Kuchiki Rukia, just when you were closer to the upstairs, a presence appears in front of you in a flashstep. He was a tall man with long hair, you see his uniform and his presence, he is Kuchiki Byakuya, the 6th Captain of Gotei 13.

"You shall not pass here, invader."

Byakuya looks at you with a serious and intimidating gaze, he sheathes his Zanpakuto and waits for you to do the first movement.