Slayers 2 bosses and what they drop

Walk up to a world boss and the game prints its whole loot table under the health bar, with a chance beside every item. The tables below are read off those bars, boss by boss. Most items sit at 3% or 5%, which is why forty kills without a katana is bad luck rather than a bug.

The Flame Hashira Rengu: the health bar, and under it every drop with its chance, exactly as the game prints them.

Frame at 4:33 of All Breathing Trainer Locations & Requirements | Project Slayers 2 Slayers Guide!, recorded by revolver agz — a player’s video, not an official image

How many kills is normal?

At 5%, it takes 45 kills before nine players in ten have the item. At 3%, the rate for every haori, it takes 76. Pick a boss and put in your own count.

BossDropKills so farChance you see in game now (optional)

Chance of at least one Serpent Haori in 30 kills, at 3%

60%

So about 40% of players who kill Obari 30 times still have nothing.

50% sure: 23; kills
90% sure: 76; kills
99% sure: 152; kills

3% is the chance printed under Obari's health bar in release-day footage. Every kill is treated as a separate roll. If the game has a pity counter, nobody has shown it on screen.

The drop lists on record

The 13 full world bosses share the same frame: 3,000 health, a World Events Chest, 1,000 experience and 450 Wen per kill. The skill line on each (the move scroll) is struck through for a player who does not qualify, with the reason beside it: Must be Slayer on a breathing move, or Missing plus the style or art. Names in brackets are the characters players usually call them by.

Boss	Health · chest	Drops and chances
Obari (Obanai) The Serpent King	3,000 · World Events Chest +1,000 exp, +450 Wen	Serpent Haori 3% Serpent Katana 5% Slithering Serpent 5% · skill, raised in v.09
Zentaro (Zenitsu) The Thunder King	3,000 · World Events Chest +1,000 exp, +450 Wen	Flaming Thunder God 5% · skill, raised in v.09 Thunder Haori 3% Thunder Katana 5%
Giyen (Giyu) The Water Hashira	3,000 · World Events Chest +1,000 exp, +450 Wen	Dead Calm 5% · skill, raised in v.09 Water Haori 3% Water Katana 5%
Saneri (Sanemi) The Wind Hashira	3,000 · World Events Chest +1,000 exp, +450 Wen	Idaten Typhoon 5% · skill, raised in v.09 Wind Haori 3% Wind Katana 5% Wind Slayer Uniform 5%
Shinora (Shinobu) The Insect Hashira	3,000 · World Events Chest +1,000 exp, +450 Wen	Butterfly Hair Clip 5% Illusory Light 5% · skill, raised in v.09 Insect Haori 3% Insect Katana 5%
Tengai (Tengen) The Sound Hashira	3,000 · World Events Chest +1,000 exp, +450 Wen	Sound Katanas 5% Sound Slayer Uniform 5% String Performance 5% · skill, raised in v.09
Rengu (Rengoku) The Flame Hashira	3,000 · World Events Chest +1,000 exp, +450 Wen	Flame Haori Style 2 3% Flame Katana 5% Flame Slayer Uniform 5% Purgatory 5% · skill, raised in v.09
Nezura (Nezuko) The Pyrokinetic Demon	3,000 · World Events Chest +1,000 exp, +450 Wen	Bamboo Muzzle 3% Blood Rupture 5% · skill, raised in v.09 Nezura's Outfit 5%
Datai (Daki) The Obi Demon	3,000 · World Events Chest +1,000 exp, +450 Wen	Datai's Outfit 5% Golden Kanzashi 5% Obi Charge 5% · skill, raised in v.09
Gyutai (Gyutaro) The Blood Sickle Demon	3,000 · World Events Chest +1,000 exp, +450 Wen	Blood Sickles 7% Circular Slashes 5% · skill, raised in v.09 Gyutai's Outfit 5%
Domae (Doma) The Cryokinetic Demon	3,000 · World Events Chest +1,000 exp, +450 Wen	Black Lotus Crown 5% Bodhisattva 5% · skill, raised in v.09 Domae's Bottom 5% Domae's Top 5% War Fans 7%
Akazo (Akaza) The Shockwave Demon	3,000 · World Events Chest +1,000 exp, +450 Wen	Akazo's Bottom 5% Akazo's Top 5% Annihilation Type 5% · skill, raised in v.09
Fujiko The Bladed Wagasa	3,200 · Ice Chest +700 exp, +315 Wen	Bladed Wagasa 5% Fujiko's Outfit 1.8% Shade Breaker 5% · skill, raised in v.09
Water Trainee Sabito Mini Boss	600 · Common Chest +185 exp, +83 Wen	Ghost Attendant Outfit 2% Scarred Warding Mask 2%
Stone Trainee Mini Boss	600 · Common Chest +185 exp, +83 Wen	Axe and Mace 7%
Thunder Trainee Mini Boss	600 · Common Chest +185 exp, +83 Wen	Experience and Wen only
Mother Bear	525 · Common Chest +180 exp, +80 Wen	Experience and Wen only
Sumari (Susamaru) The Temari Demon	3,000 · World Events Chest +1,000 exp, +450 Wen	Spiraling Shot 5% · skill, raised in v.09 Sumari's Outfit 5%

All of these were read from footage uploaded on release day. The developer’s v.09 note says it increased all boss skill drop rates by 5%, so every skill line is now higher than shown here; the other lines were not mentioned. Fujiko is the odd one out, with 3,200 health, an Ice Chest and a 1.8% outfit.

What the bars look like

A struck-through line is one this player cannot get yet, with the reason in red beside it. Gyutai’s Blood Sickles, Domae’s War Fans and the Stone Trainee’s Axe and Mace are the only 7% items in the set.

Gyutai's health bar with the drop list printed under it — `The Blood Sickle Demon` `Gyutai`: the health bar, and under it every drop with its chance, exactly as the game prints them.
Frame at 2:46 of *ALL Boss Locations & Boss Drops In Project Slayers 2 (BEST BOSS FARM)*, recorded by tana — a player’s video, not an official image

Domae's health bar with the drop list printed under it — `The Cryokinetic Demon` `Domae`: the health bar, and under it every drop with its chance, exactly as the game prints them.
Frame at 5:36 of *ALL Boss Locations & Boss Drops In Project Slayers 2 (BEST BOSS FARM)*, recorded by tana — a player’s video, not an official image

Fujiko's health bar with the drop list printed under it — `The Bladed Wagasa` `Fujiko`: the health bar, and under it every drop with its chance, exactly as the game prints them.
Frame at 4:27 of *ALL Boss Locations & Boss Drops In Project Slayers 2 (BEST BOSS FARM)*, recorded by tana — a player’s video, not an official image

Water Trainee Sabito's health bar with the drop list printed under it — `Mini Boss` `Water Trainee Sabito`: the health bar, and under it every drop with its chance, exactly as the game prints them.
Frame at 1:51 of *ALL Boss Locations & Boss Drops In Project Slayers 2 (BEST BOSS FARM)*, recorded by tana — a player’s video, not an official image

Saneri's health bar with the drop list printed under it — `The Wind Hashira` `Saneri`: the health bar, and under it every drop with its chance, exactly as the game prints them.
Frame at 3:06 of *ALL Boss Locations & Boss Drops In Project Slayers 2 (BEST BOSS FARM)*, recorded by tana — a player’s video, not an official image

The Stone Trainee's health bar with one drop listed under it — `Mini Boss` `Stone Trainee`, `600 / 600`, `Common Chest`, and a single drop: `Axe and Mace x1 (7%)`.
Frame at 16:15 of *All Breathing Trainer Locations & Requirements | Project Slayers 2 Slayers Guide!*, recorded by revolver agz — a player’s video, not an official image

Bosses that only fight at night

Walk up to Sumari, Yahari or Reaper in daylight and the spot where the health bar would be says Come back at night instead. Sumari’s bar was caught at night in the trainer-route video, so its table is above, with a demon-only move scroll. Yahari’s and Reaper’s tables have not appeared in any of the recordings this page uses. The same night rule covers Muzan and the horned demons that drop Beast Cores.

Sumari's health bar at night with two drops listed under it — At night: `The Temari Demon` `Sumari`, `3000 / 3000`, `World Events Chest`. `Spiraling Shot x1 (5%)` is struck through with `Must be Demon`; `Sumari's Outfit x1 (5%)` is not.
Frame at 15:06 of *All Breathing Trainer Locations & Requirements | Project Slayers 2 Slayers Guide!*, recorded by revolver agz — a player’s video, not an official image

Sumari (Susamaru), The Temari Demon
Yahari (Yahaba), The Arrow Demon
Reaper, Sonic Reaper Demon

ALL Boss Locations & Boss Drops In Project Slayers 2 (BEST BOSS FARM)
Recorded by tana on YouTube, a player’s video, not an official one
The whole boss route in one run. Each bar in the table above is from this video; the frame links jump to the exact second.

Before you farm one boss for its katana

Skill scrolls need the path
To a player who is not a Slayer, Zentaro’s bar shows Flaming Thunder God struck through with Must be Slayer. Learn the style first: the breathing checker shows what each trainer wants.
Each hashira is also a trainer
Zentaro, Rengu, Shinora and Tengai each appear on screen both as a trainer nameplate and as a boss bar, and guides name Obari as the Serpent trainer too. Paying the trainer and beating the boss are separate things.
Demon arts drop here too
Nezura, Datai, Gyutai, Domae and Akazo carry the demon moves. See Blood Demon Arts for which art each one needs.