- Primary keyword: This guide covers the essential demonfall quests for the Slayer storyline.
- Key mechanic: Progression is tied to specific NPCs like Hayah and Ubuyashiki.
- Best strategy: Use "cheese" spots for early bosses like Okuro to save resources.
- Critical tip: Always farm 20 demon horns before attempting the Breathing Style trials.
- Top choice: Wind Breathing is currently the best PVE style due to its massive AOE.
Starting the Slayer Journey in Demonfall
The path of a Demon Slayer begins with character customization and the luck of the draw regarding your clan. In the current 2026 meta, your clan choice significantly impacts how you approach the initial demonfall quests. Once you have established your character, your first objective is to locate Hayah, the primary quest giver for new Slayers. She serves as the gateway to the core narrative and will guide you toward obtaining your first Breathing Style, which is essential for surviving the brutal encounters ahead.
Video Highlights:
- Complete walkthrough of the Slayer storyline from Level 1.
- How to efficiently farm 20 demon horns in the Frosty Cavern.
- Strategies for defeating the Wind Breathing trainer.
- Step-by-step guide for the Final Selection speedrun.
- Tactics for the Infinite Castle endgame bosses.
Before diving deep into the missions, you must consider your starting Clan. Different clans provide passive buffs that can make early-game questing significantly easier.
Tokito Clan
- XP Boost: Faster leveling through early quests.
- Wind Mastery: Ideal if you plan to use Wind Breathing.
- PVE Strength: High AOE capabilities.
Kamado Clan
- Sun Breathing: Access to the most powerful late-game style.
- Durability: Better survivability in boss fights.
- High Potential: Best for dedicated endgame players.
Agatsuma Clan
- Berserk Mode: Temporary power boost when low on HP.
- Speed Focus: Faster movement between quest objectives.
- Thunder Synergy: Perfect for high-mobility builds.
If you are a solo player, prioritize clans with XP buffs or health regeneration to minimize downtime between quest objectives.
Obtaining Breathing Styles and Final Selection
Before you can officially take on the main demonfall quests, you must prove your worth by mastering a Breathing Style. This is a multi-step process that involves heavy grinding and a challenging duel against a trainer. Most trainers are located in hidden or specific dojos, such as the one in Okia Village. For example, Wind Breathing is highly recommended for PVE due to its massive Area of Effect (AOE), allowing you to clear groups of demons with ease.
Collect 20 Demon Horns
Travel to the Frosty Cavern. This location is the most efficient spot to farm demons. You need 20 horns to even speak with most trainers.
Locate the Trainer
For Wind Breathing, head to Okia Village and find the dojo. Each style has a unique location, so consult your map frequently.
Defeat the Trainer
This is a 1v1 duel. Trainers often jump and use high-mobility skills. Bring a friend if the game allows, or focus on M1 combos.
Enter Final Selection
Once you have your breathing style, enter the Final Selection trial. You must survive and kill a specific number of demons to earn your Slayer Nichirin.
| Requirement | Quantity | Location | Purpose |
|---|---|---|---|
| Demon Horns | 20 | Frosty Cavern | Required to unlock trainer trials |
| Yen | Varies | Any Village | Used to purchase gear and resets |
| Level | 10+ | Any | Minimum recommended for Final Selection |
| Patience | High | Trainer Dojo | Essential for mastering the AI patterns |
The trainers in 2026 have updated AI. They will actively dodge your heavy attacks, so focus on quick M1 strings and wait for their cooldowns.
Core Storyline Quests: Lower Moon Bosses
After surviving Final Selection and receiving your Nichirin sword, you return to Hayah to begin the official demonfall quests. The first major hurdle is Lower Moon 6, Okuro. These missions transition from simple demon hunting to complex boss encounters that require specific mechanics to overcome. Following Okuro, you will be directed to Ubuyashiki, who oversees the higher-stakes missions involving the Twelve Kizuki.
| Quest Name | Boss / Objective | Strategy | Rewards |
|---|---|---|---|
| Mission 1 | Okuro (LM6) | Use the "High Ground" bug; spam M1 from above. | Slayer Rank Up, XP, Yen |
| Mission 2 | Kill 8 Demons | Farm the outskirts of Hayakawa for fast kills. | Progression to Rui Quest |
| Mission 3 | Rui (LM5) | Avoid the threads; use long-range breathing skills. | High XP, Rare Drops |
| Mission 4 | Lower Moon 2 | Parry the heavy strikes; stay mobile to avoid AOE. | Access to Infinite Castle |
For Okuro, there is a known tactic where you can stand on a specific elevated part of the arena. He will often glitch, allowing you to deal free damage without taking hits.
The transition from Mission 2 to Mission 3 is a significant difficulty spike. You will need to move from basic demon hunting to the Rui mission, which requires better timing and resource management. Ensure your breathing bar is always upgraded before attempting these.
The Infinite Castle: Final Storyline Challenge
The pinnacle of the currently available demonfall quests is the Infinite Castle mission. This is an endgame gauntlet that pits you against the most powerful entities in the game: the Top 3 Upper Moons. Unlike previous missions, this requires a high level of mastery over your breathing style and perfect parry timing. You will face Akaza, Doma, and Kokushibo in sequence, making this the ultimate test of a Slayer's resolve.
Upper Moon Encounter Details:
- Akaza: Focuses on brutal hand-to-hand combat. His speed is his greatest weapon.
- Doma: Uses ice-based AOE attacks that can freeze you in place. Maintaining distance is key.
- Kokushibo: The most dangerous boss, utilizing Moon Breathing with massive range and damage.
| Boss | Difficulty | Primary Threat | Recommended Style |
|---|---|---|---|
| Akaza | ★★★★☆ | Rapid-fire strikes / Shockwaves | Thunder or Water |
| Doma | ★★★★☆ | Freezing AOE / Clones | Wind or Mist |
| Kokushibo | ★★★★★ | Massive Range / Instant Breaks | Sun or Flame |
Completing the Infinite Castle mission marks the end of the current Slayer storyline. This grants massive prestige and unlocks high-tier gear options.
Slayer Progression and Rewards Checklist
To ensure you haven't missed any critical steps in your demonfall quests journey, follow this progression checklist. Staying on track with your levels and gear is vital for the later boss fights.
Slayer Milestone Checklist:
- Reach Level 10 and farm 20 Demon Horns
- Successfully obtain a Breathing Style from a Trainer
- Complete Final Selection and get your Nichirin
- Defeat Okuro (Lower Moon 6) and rank up
- Complete the Rui and Lower Moon 2 missions
- Enter and clear the Infinite Castle gauntlet
Beyond the main quests, you should also focus on secondary goals to maximize your character's potential.
| Activity | Benefit | Frequency |
|---|---|---|
| Daily Trials | Bonus XP and Yen | Every 24 Hours |
| PVP Duels | Skill practice and ranking | Unlimited |
| Trinket Hunting | Sell for Yen to buy potions | Ongoing |
| Clan Rerolls | Optimize passives for endgame | As needed |
Don't rush the Infinite Castle. If you find yourself dying repeatedly to Akaza or Doma, spend time doing daily trials to boost your level and health pool.
Frequently Asked Questions
Q: How do I start the main demonfall quests as a Slayer?
You must first complete the intro sequence, talk to Hayah, and obtain 20 demon horns to get a Breathing Style. After passing Final Selection, Hayah will give you your first official mission.
Q: What is the best Breathing Style for completing quests fast?
Wind Breathing is currently top-tier for questing because its large AOE attacks allow you to clear groups of demons and hit bosses from a safe distance.
Q: Can I redo the Infinite Castle mission?
Yes, you can replay the Infinite Castle for rewards and XP, but the initial storyline completion only happens once per prestige level.
Q: What happens if I can't beat Okuro?
Try using the 'high ground' strategy mentioned in our guide or team up with another player. Okuro is a gatekeeper boss designed to test your basic combat skills.