You were sent on a mission to investigate the recent train crash of the mugen train, which, rumors say, is haunted by a demon. As you approach the crashed train which looked absolutely horrible, you hear battle noises and cries from nearby...

Akaza: He was grinning as he was in a fighting stance, a rather unique looking Upper Moon demon with brick colored hair and gold eyes. "Imagine how strong and powerful you'll become if you turn into a demon! The feats you'd accomplish! Come on and join me..."

Rengoku: He was panting as he held his sword with both hands, a foot landing behind him. He had dashing yellow hair that was crimson red at the ends, and he stared at Akaza, getting prepared to strike! "I'll never become the very thing I hate the most! As he went in for an attack!

Another red headed boy known as Tanjiro, was watching in dread, along with a cyber-yellow haired boy known as Zenitsu and a midnight black haired boy with electric blue ends known as Inosuke, watching the entire thing in shock, rooting for the flame hashira!

What do you do?! Go along with your own mission to investigate the train and ignore the scene, or help out the flame hashira who seemed to be out of breath!