Interdimensional Biosphere
Ground & Volcano, Varmundt Mansion
Requires: Base Level 265
Overview
The Interdimensional Biospheres are habitats found inside Varmundt Mansion that were never in the mansion's own records. The story explanation is a dimensional collision: part of another world's Varmundt Mansion overlapping with this one, leaving a breach that is still open. In practice they are very high level hunting maps with their own currency, their own cards and a set of purge operations to run on a timer. This first wave opens two of them, Ground and Volcano.
This is not Chapter 3. It belongs to Chapter 2 and was added to it after the chapter itself went live.
When kRO released it
Gravity rolled the Biosphere out in three waves, all of them after Chapter 2. The first wave is the one covered here, and the other two have their own guides.
Two more things landed in the same stretch and are worth knowing about if you are following kRO: the level cap went to 285 on 2026.08.19 alongside the Throne of the Black Flame Dragon memorial dungeon, and Juno Library VOL3 followed on 2026.09.16.
Getting in
- Talk to Hongsi at /navi ygg_edge 229/221, next to Lara.
- You are sent through Varmundt Mansion. The Mansion Steward sits at /navi ba_in01 340/300.
- The breach hub is ba_void. From there two warps split the habitats: Ground at 139/202 and Volcano at 139/216. Gunsi, who runs the operations, is in the north wing at /navi ba_void 130/207.
Hongsi, Gunsi and the Mansion Steward share one look, an android maid, so go by the name above the head. Click a sprite to find it in the NPC gallery.
/navi ygg_edge 229/221
/navi ygg_edge 227/221
Volcano: /navi ab_lava1 16/158
/navi ba_in01 340/300
/navi ba_void 130/207
/navi ba_void 138/112
ab_ground1
Volcano map: ab_lava1
Both: no memo, no warp in
Monsters and what they drop
Eight creatures per habitat, each with a plain and a Tough version. The Tough ones keep the same level with 1.75 times the HP (about 1.9 for the Rakehand and the Fireloop) and about 1.5 times the EXP, so they are a damage check rather than a different fight. Unlike the later waves, each monster here has its own drop list. The table under each habitat shows who drops what, at the rates in the data before any drop bonus.
Ground
ab_ground1
- HP
- 101,093,942
- Base EXP
- 12,050,574
- Job EXP
- 8,431,200
- Tough #22725
- HP
- 176,924,142
- Base EXP
- 18,075,860
- Job EXP
- 12,646,800
Earthworm Peeling49%Tough 39%
- HP
- 92,742,610
- Base EXP
- 11,691,082
- Job EXP
- 8,163,330
- Tough #22729
- HP
- 177,225,054
- Base EXP
- 17,826,210
- Job EXP
- 12,447,198
Sticky Mucus32%Tough 27%
- HP
- 125,832,359
- Base EXP
- 12,500,736
- Job EXP
- 8,698,274
- Tough #22731
- HP
- 220,218,982
- Base EXP
- 18,751,106
- Job EXP
- 13,047,410
Antelope Horn51%Tough 41%
- HP
- 109,642,576
- Base EXP
- 12,249,046
- Job EXP
- 8,531,460
- Tough #22733
- HP
- 191,885,536
- Base EXP
- 18,373,568
- Job EXP
- 12,797,190
Bright Eye27%Tough 26%
What they do: stun from three of the four. The Hode burrows (Cloaking) and casts Earth Spike and Heaven's Drive, the Rakehand hides as well, the Goat curses, and the Letterster provokes you before it hits with Pulse Strike.
| Drop | Hode |  Tough | Rakehand |  Tough | Goat |  Tough | Letterster |  Tough |
|---|---|---|---|---|---|---|---|---|
 Rift Ground Rune Fragment | 8.12% | 7.54% | 7.6% | 11% | 7.48% | 5.88% | 6.53% | 8.33% |
 Rift Ground Essence | 2.81% | · | 2.33% | · | 2.17% | 3.92% | 1.36% | 3.33% |
 Terrestrial Biological Scepter | · | · | · | · | 0.72% | · | 0.27% | 3.33% |
 Dimensional Ecology Foliage (Earth & Volcano) | · | · | · | 2.32% | · | · | · | · |
 Dimensional Earth Card Fragment | · | · | · | · | 0.24% | 1.96% | · | · |
 Dimensional Ecology Leaf (Earth) | · | · | · | · | · | 1.96% | · | · |
 Terrestrial Mechanical Mace | 1.25% | · | · | · | · | · | · | · |
 Etel Dust | 1.87% | 5.66% | 2.92% | 2.32% | 1.93% | 1.96% | 2.17% | 1.66% |
 Shadowdecon | 0.93% | · | · | · | 1.93% | · | 0.81% | 3.33% |
 Zelunium | 0.31% | · | 0.58% | 2.32% | 0.24% | · | 0.27% | · |
 Boundary Magic Powder | 0.62% | · | 0.58% | · | 1.2% | 1.96% | 0.27% | · |
 Essence of Chaotic Magic Power | · | 1.88% | · | · | · | · | 0.27% | · |
 Azure Dimensional Energy | · | · | 0.58% | · | · | · | · | · |
 Sunset Dimensional Energy | 0.31% | · | · | · | · | · | · | · |
 Rune of Chaotic Magic Power | · | · | · | · | · | · | 0.27% | · |
Volcano
ab_lava1- HP
- 112,259,438
- Base EXP
- 12,370,438
- Job EXP
- 8,607,610
- Tough #22715
- HP
- 196,466,785
- Base EXP
- 18,555,658
- Job EXP
- 12,911,414
Burning Hide54%Tough 44%
- HP
- 99,103,404
- Base EXP
- 13,435,058
- Job EXP
- 10,767,110
- Tough #22717
- HP
- 187,899,707
- Base EXP
- 20,152,588
- Job EXP
- 16,150,664
Fire Ring22%Tough 28%
- HP
- 103,135,128
- Base EXP
- 13,644,968
- Job EXP
- 10,913,472
- Tough #22719
- HP
- 180,498,300
- Base EXP
- 20,467,452
- Job EXP
- 16,370,208
Burning Bug Skin20%Tough 17%
- HP
- 103,498,795
- Base EXP
- 12,660,856
- Job EXP
- 8,818,286
- Tough #22721
- HP
- 181,132,235
- Base EXP
- 18,991,286
- Job EXP
- 13,227,430
Old Snack49%Tough 60%
What they do: fire magic from three of the four, with Fire Bolt up to level 9, Fire Ball from the Fireloop, Meteor Storm from the Logidogi and Magma Eruption from the Fire Bug. The Flamebull stuns and hits straight through defence.
| Drop | Flamebull |  Tough | Fireloop |  Tough | Fire Bug |  Tough | Logidogi |  Tough |
|---|---|---|---|---|---|---|---|---|
 Rift Volcano Rune Fragment | 8.23% | 12% | 10% | 3.38% | 5.53% | 7.46% | 13% | 5.71% |
 Rift Volcano Essence | 2.13% | 1.72% | 2.7% | 1.69% | 1.23% | 1.49% | 1.89% | · |
 Volcanic Wind Pick | 0.91% | · | 0.81% | · | · | · | · | · |
 Volcanic Abyss Knife | · | · | · | · | 0.61% | · | 0.47% | · |
 Dimensional Volcano Card Fragment | 0.3% | · | · | · | · | · | · | · |
| Etel Dust | 1.52% | 3.44% | 2.16% | 5.08% | 2.15% | 2.98% | 0.94% | 8.57% |
| Shadowdecon | 0.91% | 3.44% | 1.08% | · | 0.3% | 1.49% | 1.42% | 5.71% |
| Boundary Magic Powder | 0.91% | 5.17% | 1.35% | · | 0.92% | 2.98% | 0.94% | 2.85% |
| Zelunium | 0.91% | 1.72% | · | 3.38% | 0.3% | 1.49% | 0.47% | · |
| Rune of Chaotic Magic Power | · | · | 0.54% | 1.69% | · | · | · | · |
| Azure Dimensional Energy | · | · | · | · | 0.3% | · | · | · |
Purge operations
The habitats are treated as managed zones, and the population control work is where the steady income is. Both habitats have a daily and a weekly, taken from Gunsi at /navi ba_void 130/207. The kill counter accepts both the plain and the Tough version of every monster in that habitat. The weekly asks for 15 Mana Rings to join (a Chapter 1 item), because you will be in the other dimension a long time.
| Operation | Kills | To join | Resets | Pays out |
|---|---|---|---|---|
| Plains Purge, daily | 500 | Free | Daily, 4am | EXP |
| Volcano Purge, daily | 500 | Free | Daily, 4am | EXP |
| Plains Purge, weekly | 1,500 |  Mana Ring x15 | Monday, 4am |  Ecological Environment (Earth) Specimen |
| Volcano Purge, weekly | 1,500 | Mana Ring x15 | Monday, 4am |  Ecological Environment (Volcano) Specimen |
| A Specimen gives one of | Amount | Chance |
|---|---|---|
| The habitat's essence | x2 | 39.2% |
| The habitat's essence | x3 | 19.6% |
 Fixed Crack | x1 | 11.8% |
| Fixed Crack | x2 | 7.8% |
| Fixed Crack | x3 | 3.9% |
| The habitat's card fragment | x1 | 7.8% |
| The habitat's card fragment | x2 | 3.9% |
  The habitat's rune | x1 | 3.9% |
| The habitat's rune | x2 | 2.0% |
Exchanges
Everything is bought from the All-Purpose Dongle at /navi ba_void 138/112. Materials come off the monsters, then convert upward: essences and rune shards become runes, runes plus card shards become cards.
Boundary Magic Stone x3
Essence of Heterogeneous Magic Power x10Gear
All five pieces need Base Level 265, and all of them can be refined and graded. The weapons drop in the habitats; the cloak is bought. The four weapons share one pattern: ATK +25 per 2 refines, and P.ATK +1 plus 5% melee damage (the daggers) or ranged damage (the maces) per 3 refines. At +7: ATK +10% and P.ATK +5. At +12: non-critical damage +10%. Grade D adds ATK +5% and another 10% melee or ranged damage, grade C adds non-critical damage +10%, and grade B adds 10% physical damage against every element.
Volcanic Wind Pick#510211- Always
- Non-critical damage +5%, Flame Trap and Deep Blind Trap +10%
- +11
- Solid Trap and Swift Trap +10%, Flame Trap and Deep Blind Trap +15%
- A +12
- All four traps +30%
Volcanic Abyss Knife#510212- Always
- Non-critical damage +5%, Chasing Break +10%
- +11
- Deft Stab +10%, Chasing Break +15%
- A +12
- Deft Stab and Chasing Break +20%
Terrestrial Biological Scepter#590121- Always
- Indestructible. Non-critical damage +5%, Acidified Zone (Fire) and (Wind) +10%
- +11
- Acidified Zone (Water) and (Ground) +10%, (Fire) and (Wind) +15%
- A +12
- All four Acidified Zones +30%
Terrestrial Mechanical Mace#590122- Always
- Indestructible. Non-critical damage +5%, Energy Cannonade +10%
- +11
- Spark Blaster +10%, Energy Cannonade +15%
- A +12
- Spark Blaster and Energy Cannonade +20%
Relentless Manteau of Ruin#480781- Always
- POW +3, CON +3, HIT +30
- Per 3
- Melee damage +5%, non-critical damage +5%
- Grade D
- Melee +10%, non-critical damage +10%
- Grade B
- POW +5, CON +5
The cloak also gives ATK +5 per 2 refines, variable cast time -10% and ASPD +10% at +7, after-cast delay -10% at +9 and P.ATK +10 at +12. Grade C adds ATK +10%, and grade A adds 10% physical damage against every element.
Cards
Eight weapon cards, bought at the Dongle. On their own every one of them gives ATK +10%. Each weapon has two cards that add a bonus with it, and the pair together unlocks a stronger effect once the weapon is at grade A and refined to +12.
Terrestrial Biological ScepterBiolo
Terrestrial Mechanical MaceMeister
Volcanic Wind PickWindhawk
Volcanic Abyss KnifeAbyss Chaser
Enchanting and refining
The Dongle enchants the Relentless Manteau of Ruin.
The cloak has two enchant slots, filled in a fixed order: the 4th slot first, then the 3rd. Nothing can fail. You pay the Dongle, and the result is rolled from the list below.
- 4th slot: a random STR, INT, AGI or VIT: +3 at 20% each; +4 at 4.5% each; +5 at 0.5% each. No DEX or LUK on this list.
- 3rd slot: one of eight level 1 runes: Strong Attack, Master Craftsman, Slash, One Strike, Magic, Magic Power, Diamond, Benevolence. Each sits at 12.4%, except one at 13.2%.
- Upgrading the rune keeps the family and raises the level. Level 1 to 2: 10,000,000z + both of the cloak's runes x50 each + Essence of Chaotic Magic Power x30 + Essence of Heterogeneous Magic Power x15. Level 2 to 3: 25,000,000z + both of the cloak's runes x100 each + Essence of Chaotic Magic Power x50 + Essence of Heterogeneous Magic Power x20 + Fixed Crack x10.
- Reset: 10,000,000z + Fixed Crack x1, and it works 80% of the time.
| Cloak | 4th slot costs | 3rd slot costs | Likeliest rune |
|---|---|---|---|
| Relentless Manteau of Ruin | 5,000,000z + Rift Ground Rune x3 + Rift Volcano Rune x3 | 20,000,000z + Rift Ground Rune x20 + Rift Volcano Rune x20 + Rift Ground Essence x50 + Rift Volcano Essence x50 | Rune of Strong Attack 13.2% |
The Dimensional Ecology Leaves and the Foliage add one refine level, with no chance of failure, to a piece that is already at +9, +10 or +11. Two of them drop here: the Tough Goat drops the Earth leaf and the Tough Rakehand the Earth & Volcano foliage.
| Leaf | Works on | Also costs |
|---|---|---|
| Dimensional Ecology Leaf (Earth) | Not in the data | |
 Dimensional Ecology Leaf (Volcano) | Not in the data | |
| Dimensional Ecology Foliage (Earth & Volcano) | Not in the data |