Slayer or demon?

Every character starts human and picks a side: learn a breathing style and pass Final Selection to become a Slayer, or drive your reputation down and drink Muzan’s blood to become a demon. Neither is locked forever; switching later costs a Reset Race from the shop, 10 Ore or 150 Robux.

What changes with your choice

	Slayer	Demon
Your power	Eight breathing styles, each from its own trainer	Blood Demon Arts: an orb from Muzan’s roll or a chest, then its core training
Getting there	Level 25 and a trainer's materials, then Final Selection	Reputation below about minus 40, then Muzan at night; seen as early as level 6
Daylight	No effect	You burn, unless you wear a sun hat, roll Kamado, or hold the Bladed Wagasa
Second progress bar	Slayer Progress, filled with gourds	Demon Progress, filled with souls (see mastery)
Bounties	From your Kasugai Crow	From Muzan
Weapons listed for one side	Spear, Tanto, Gauntlet, Axe and Mace, Shotgun	Scythe and War Fans
Boss move drops	Breathing moves, struck through with `Must be Slayer` for everyone else	Art moves, struck through for anyone without that art
Reputation	Killing demons pushes it up	Killing Slayers and civilians pushes it down, which is how you got here

Play a Slayer if…

You want to pick your moves. Each breathing style comes from a named trainer for a known price, so you choose exactly what you get. The breathing checker tells you which ones you can afford now.
You want to play by day without thinking about it. The sun does nothing to a Slayer, so every stat slot stays free for damage (see the accessories page).
You like the Slayer weapons. The Axe and Mace, the key to Stone Breathing, and the Shotgun are listed as Slayer weapons.

The route, step by step, is on the Become a Slayer page.

Two NPCs in purple kimonos flanking a player, with a large countdown overhead — Closer in: a countdown, `1:03:54`, and under it `Race Human`. Two NPCs in purple kimonos stand either side of the player.

The Player Info tab showing a character's level, the word Slayer and a progress bar — `Player Info / Progression`: the player's name, `Lv 124 Slayer`, and under it a `Slayer Progress` bar at `Lv 1`, still empty.

Play a demon if…

You want to start fast. The route has no level lock and has been done at level 6, long before a breathing trainer will talk to you at 25.
You don’t mind a gamble. Your art is rolled, not chosen; a bad roll means rolling again or finding a boss orb. The tier list shows which arts are worth chasing.
You want the demon-only extras. Two of the three fighting styles, Soryu and Reaping Blades, are demon-only (see fighting styles), and the Kamado clan’s Regen Adrenal skill works only for demons.

The cost is the sun. Until you find a hat, daylight burns you, and a sun hat takes one of your five stat slots. Kamado fixes that for good, and the Bladed Wagasa also carries Sun Immunity.

The route, step by step, is on the Become a Demon page.

A demon covered in flames on a sunny path in a bamboo grove, the screen edges tinted red — A demon out in daylight: fire over the whole body, a red flash at the screen edges, and the health bar at `573 / 657`. No warning text appears.

Reward bar after a kill showing minus 9 reputation, with a reputation panel in the top-right corner — One kill pays `+61 Exp`, `+27 Wen` and `+41 Fist Mastery`, and costs `-9 Reputation`. The panel in the top-right corner, headed `Reputation`, now reads `-9`.

Changing your mind later

Slayer to demon. Reputation alone is not enough: a Slayer who tries the demon route is reportedly turned away by Muzan whatever their reputation. Buy Reset Race first, then follow the demon route.
Demon to Slayer. Final Selection’s gate only lets a Race Human through, so a demon needs Reset Race before the trial.
Reset Reputation is a different item and does not change your race. Every reset and its price is on the resets page.