Project Slayers 2: How to Get Thunder Breathing and Butterfly Mansion Location

Thunder Breathing has no shop counter and no village stall. The only way to learn it is to find Thunder Trainer Zentaro, who stands alone on a flat summit at the top of Verdant Cliffs, and the last stretch of that trip is pure vertical climbing. Get the prerequisites sorted before you leave, because backtracking for demon horns is a long walk.

Quick answer: Unlock wall climbing, carry 7 to 10 demon horns and around 7,000 Wen, then run from Bamboo Grove to Verdant Cliffs, scale the stone pillar to Zentaro, and clear his six training tasks.

Thunder Breathing requirements in Project Slayers 2

Zentaro will not start anything if you are missing a piece. Check all of this before you set off.

Double jump and wall climbing, the movement abilities that open up at level 4.
Level 25, the shared gate for every Breathing trainer. Zentaro’s name plate carries a Lvl. 25+ tag.
Roughly 7 to 10 demon horns for the training.
Around 7,000 Wen to cover the cost.
A human character. Demons cannot learn a Breathing style.
Stamina headroom, since the ascent is a chain of climbs with few flat rest spots.

The tree-trunk and cliff-face sections cannot be passed without double jump plus wall climb; neither section has an alternate route upward.

Before starting the climb, remember that each character may commit to only one Breathing style. If Zentaro refuses you, you either have not met the level requirement or already have a different style equipped.

Route to Thunder Trainer Zentaro on Verdant Cliffs

Begin at the shrine, travel through Bamboo Grove and the Wilderness, then finish atop one particular stone pillar near the bear village. The trip is lengthy, so maintain your sprint and avoid battles. Travel in daylight when possible because the landmarks are much more difficult to identify at night.

At the shrine on Windy Path, find the red torii gate. Descend the stone stairs, then take the dirt trail from the starter area toward the Wilderness.

Make your way through Bamboo Grove beneath the row of torii gates and past the thick bamboo. Cross the red wooden bridge at a dash, then continue in the direction of the wilderness path.

Crossing the bridge — The red wooden bridge with torii gates marks the turn toward the mountain route. Shown at 00:16 in Ishiken’s video. Image: Ouw Productions

Run straight past The Serpent King Obari world event without engaging it. It sits roughly halfway along the route and is a useful marker that you are still on track.

A river stream marks your route through the Wilderness. Move through its shallow water, then descend beyond the waterfall edge to the cliffside trail underneath.

Follow the mountain ridges toward the tall stone pillars. Look for the pillar with a large tree branch running up its face, because that branch is your entry point.

Navigating the dark path — The elevated dirt paths that lead to the base of the Verdant Cliffs pillars. Shown at 00:58 in Ishiken’s video. Image: Ouw Productions

Use alternating jumps and wall-climb maneuvers to scale the huge vertical tree trunk and reach the elevated ground beyond it.

Scale the sharp grassy cliff with wall climbing, then pause on the tree branch overhead while your stamina returns. Follow the branch, move onto the next stone ledge, circle the cliff corner, and ascend the vertical stone wall.

Balance across the narrow ledges, climb the slanted rock walls, and finish with one last trunk section onto the flat summit. Zentaro is standing there in the open.

A missed jump usually drops you onto a lower ledge rather than all the way to the bottom, so check where you landed before assuming you have to restart the whole climb.

When the plateau is empty, confirm your elevation before joining a different server. Trainers may be positioned on rooftops, over cliffs, or beyond underwater passages, while an area that has only partly loaded can conceal them completely.

Zentaro’s Thunder Breathing Training tasks

Reaching the summit is not the unlock. Standing close to the NPC brings up a Thunder Trainer Chat prompt, and talking to him opens the Thunder Breathing Training quest list. Every entry has to be cleared.

Meditate
Cup Training
Push ups
Aim Training
Boulder Split
Defeat the Thunder Trainee

The quest list records the first five as completed training exercises. The final task is an actual battle with the Thunder Trainee, so bring health items instead of approaching it as another meditation prompt.

How to confirm Thunder Breathing unlocked

There are two checkpoints. The first is that Thunder Trainer Chat prompt appearing in front of Zentaro, which confirms you are at the right NPC and meet his requirements. If it does not show, you are on the wrong ledge or standing too far back.

The second comes after the Thunder Trainee falls. Open the Skill Tree menu and look for the Thunder line, which unlocks from the top down starting with the base Thunder node. Once those entries are there, the style is yours permanently.

Skill Tree Overview — The Skill Tree with the full Thunder line unlocked, from the base node through to Flaming Thunder God. Shown at 00:20 in SAGEz’s video. Image: Ouw Productions

Thunder Breathing moves and keybinds

Move	Key	Effect
Thunder Clap and Flash	—	Aimed dash with a spin swing knockback finish
Lightning Fold	X	Flash upward, slam down on the target
Rice Spirit	C	Charged area attack around you
Godspeed	V	Dash attack that doubles as travel
Flaming Thunder God	—	Ultimate with a cinematic cutscene

Thunder Clap and Flash is the signature strike and the one most players sink points into first. How far you travel depends on where you aim, which is what makes it useful for extending combos rather than just closing gaps.

Godspeed is the sleeper pick. It hits enemies, but its real job is mobility, and it cuts repeat trips across the Wilderness and Bamboo Grove down to a fraction of that first run on foot.

Flaming Thunder God Showcase — Flaming Thunder God plays a full cutscene on activation, and it drops from the Zenitsu boss rather than the trainer. Shown at 01:59 in SAGEz’s video. Image: Ouw Productions

Zenitsu boss drops for Thunder users

The Zenitsu boss appears in the area beneath the plateau. Drop from the summit and head toward that spawn point rather than climbing back along your route. He alone provides the Thunder cosmetics, Thunder weapon, and ultimate.

Drop	Chance
Thunder Haori	3%
Thunder Katana	5%
Flaming Thunder God skill	5%

At those rates this is a long-term farm, not a single session. The skill sits at the same rarity as the katana, so plan on many runs before Flaming Thunder God shows up.

Butterfly Mansion location and what you can do there

The Butterfly Mansion, also known as the Butterfly Estate, is the Slayer Corps training facility. Meditation, push-ups, and other training activities send you there. Signs along the main road indicate its location, and it appears at level 20; the nearby area is designed for level 25 and above. On the original Project Slayers map, find it north of Kabiwaru Village and to the east of Jinger’s Home.

Route to the Butterfly Mansion from Kiribating Village

Leave Kiribating Village through the main gates into the Wilderness and follow the dirt path straight ahead.

At the junction where the trail splits in two, take the left route.

First Fork in the Path — The fork in the Wilderness path. Take the left branch here. Shown at 00:47 in Edited’s video. Image: Ouw Productions

Keep running straight past the lampposts and wooden structures until you see the NPC Naratia, then climb the grass-topped hill on your right.

Cross the open field to the red wooden bridge and run over it. Carry on across the sand terrain toward a set of wooden stair ramps.

Climb the ramp platforms and traverse them across the rock walls, then descend and follow the sand path until it dead-ends into a wall. Turn left there.

Climbing the Ramp Structures — The wooden stair ramps built into the rock walls, midway along the mansion route. Shown at 02:06 in Edited’s video. Image: Ouw Productions

Turn right around the rock cliff corner and follow the dirt trail along the base of the cliffs. It runs straight into the mansion courtyard.

What the mansion is used for

The grounds also function as a compact hub outside the drills. Use them for breathing-style meditation and push-ups, purchase gourds, spar with fellow slayers, and collect slayer uniform variants. A medic NPC remains here, while Shinobu teaches Insect Breathing for 5,000 Wen.

Uniform	Cost	Effect
Wind Pillar Uniform	2,000 Wen	+5% speed
Stone Pillar Uniform	2,000 Wen	+100 max health

The Mizunoto Slayers patrolling the grounds are neutral and only retaliate after you attack. The group stationed near Giyu, the Water Hashira, is the exception; he is positioned south of the mansion.

Once Zentaro’s list is empty and the Thunder skills sit in your Skill Tree, the climb is done with you. Everything else Thunder-related, from the Zenitsu farm to the mansion’s training drills and uniform shop, happens back down on the main map.