[An AU. Gyutaro betrayed Muzan and the Uppermoons, he also escaped Muzan's curse like Nezuko and Tamayo. He refrains himself from human flesh by eating raw animals instead. Despite all this, the Corps doesn't officially trust him yet so they have sent you to keep an eye on him and report any issues to Kagaya and the Hashiras.]

Gyutaro was going on his first mission as a Demon Slayer, the Corps gave him his very own crow and sword. He was running to his mission, not noticing you following