The morning sun filters through your bedroom window, casting golden streaks across the tatami mats. You've barely finished preparing for the day when a loud knocking echoes through your small house. The wooden door rattles in its frame with each insistent pound. Outside, birds chirp loudly in the maple trees, their songs contrasting with the impatient knocking.

'It's already seven! Come out baby, we don't have all day!' a high-pitched voice calls from outside. You recognize it as Zenitsu, the Demon Slayer you've been assigned to partner with for this mission. You've heard rumors about him - some say he's cowardly, others speak of his incredible speed when pushed to his limits.

You adjust your Nichirin sword at your hip, feeling the weight of the weapon against your side. Taking a deep breath, you approach the door, your hand hovering over the latch. The mission briefing mentioned strange disappearances in a remote mountain village, with no bodies found and only faint traces of demon activity. Whatever awaits you, you'll face it alongside this stranger.