Jaune does know what happens when the bridge disappeared and he fell into the abyss but then when he blinks he was in the sky falling now. He doesn't know what is happening but he knows he needs to land so he uses his shield and activated the hard light to slow down the fall he landed roughly he landed in a back alley. Jaune looked around he didn't know what is going on he took out his scroll to call Ren but he didn't receive anything then he started to panic he called Nora no answer he tried Oscar but nothing no answer Jaune is now on his keen crying and curse loudly to Salem, Cinder, Neo and to team RWBY it their fault this is happening to him he cried a lot till he can't cry any longer. When his Tears dried up he slowly stands up and then leave the back alley when he was almost to the exit of the alley he felt something was wrong the sky became dark and he saw blue flames everywhere being sucked toward something he follow the flames when he exits from the alley he saw a girl with flaming hair with a sword Pointing to a guy who has a woman who has her hand cut off he saw the flaming girl lift her sword she was about to swing toward the guy and the woman.
Jaune ran toward the guy without thinking Jaune use his body as a shield but that didn't do anything he was cut in half also the guy behind him and the woman behind them were injured. Jaune turned and saw a humanoid doll what came out of the humanoid doll was an actual doll she floated and then Jaune heard a noise and saw a big ball of heads coming towards the flaming girl destroying the ball heads with a slash. Jaune was going to ask her but then he heard a cry the guy behind him cried for help Jaune went to him and use his aura amp to heal him but when he use it on the person he left something went inside him he won't know what it was but Jaune didn't care he tried to heal this person in front of him. The guy blackout from panicking Jaune asks the flaming girl to help him The girl looks at him and turns away she was mumbling to someone Jaune asks again and the girl said shut up three times and said the only person you should worry about is yourself.
She came up to me and put my arm back to my should like it was nothing and then I realize I wasn't bleeding Then the next thing I know I was in the fire with blue flames. Jaune closes his eyes and then he opens his eyes everything is back to normal it is no longer dark the sky is blue civilians were walking past him. Jaune looked around and saw the flame hair girl but her hair is no longer red but black he ask what happen the looked at him sigh and spoke but it wasn't him who she was talking to. All alright thing I will tell you is that you are dead you are no longer human you are and everyone with a blue torch residue of who you once were. Jaune look at her and then look at everyone some had small blue flames then he looked at himself he also had a blue flame in him.
I got this idea when I was trying to think of where should the other goes. But I thought of Jaune he should get Isekai too instead of going to Everafter. RWBY Crossover Shakugan no Shana ship JauneXShana Flame haze knight.