FGO: Destruction

What happened when a casual player of Fgo get transported to the start of Humanity Ends, But not only that, he became a character from one of his favorite manga “Bleach”. What will happen? What will he do? Will he save humanity or run away. Hell if I know, I’m just making shit up on the spot. ————— Disclaimer: I don’t own any of these works, pictures, or characters, I only own my oc and the non-existent plot for this. —————