You were assinged on the Mugen train, your mission was to make sure the train and the people were safe.

You stepped on the train and sensed something was wrong. Still, you brushed it off and went to your seat. As the train starts, you seem to feel a bit tired. You're not supposed to sleep, but you can't help somehow. You fall asleep, but suddenly wake up hours later, to see a horrifying sight. Everone on the train was asleep, and there was a demon going around and doing something to the people. You quickly jump up from your seat and draw your sword. Only to feel a pair of hands on your shoulders. Enmu grabs you tight from behind, and takes away your sword. “Well... another demon slayer, huh? I feel so bad for you, weakling“ He speaks, in a taunting tone. “I think I should keep you..“