Origin
A pale malefact wandered into the forest on the outskirts of Ogouchi Colony, Emma's home.
When they made contact they became Entangled, allowing part of its memories to flow into Emma.
While it is a malefact, it bears its own mission.
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Buddy character dossierBDY
Koo
A data-first reference page for Koo, Emma's bonded malefact partner and a versatile support, control, and exploration companion.
BuddySource dataSupport
Quick stats
Max level
200
Base HP
2,080
HP growth
+5
Recorded max HP
2,575
Max Florescence Points
9
Level 200 total EXP
590,170
Character lore
Bond with Emma
Emma
Koo shares a bond with Emma and will seek her out if they are separated.
Entanglement Overdrive
Entanglement Overdrive lets Emma and Koo enter a hyper-focused state that slows their perception of time.
Combat mechanics
Bloom Arts
Max points 9Koo can use the power of the blight to unleash strong nature attacks. These are called "Bloom Arts."
Florescence Point recovery
Successfully parrying an attack will replenish a portion of Koo's <img id="RichText_FP_Aibou"/> FP. This fuels Koo's Bloom Arts, which have a range of useful effects, including healing Emma. If you're ever in a bind, try using Koo's skills to turn things around. Keep in mind, though, that you cannot use the same Bloom Art twice in succession.
Bloom Arts rules
- •A successful parry restores a portion of Koo's Florescence Points.
- •The same Bloom Art cannot be used twice in succession.
Skills
Active skills
Higanbana: Bloom
Active
Create multiple higanbana blossoms.
These blossoms can be jumped to. Even when surrounded, these flowers can provide a way to leap to safety.
Cost: 0 / 10 / 15 / 20 / 30
Higanbana: Roots
Active
Extend multiple piercing higanbana roots that can pull in lighter enemies.
This groups enemies together, allowing you to attack them all at once.
Cost: 0 / 10 / 15 / 20 / 30
Higanbana: Seeds
Active
Fire a burst of higanbana seeds at a target.
Shooting an enemy in midair and following-up can stagger and fend off counterattacks.
Cost: 0 / 10 / 15 / 20 / 30
Passive skills
Healing Bouquet
Passive
Bring forth flowers to restore HP. Continuously recover HP in the area.
Cost: 22
Lay Landmine
Passive
Enables Koo to occasionally lay landmines.
Cost: 8
Nushi skill
Nushi Skill: Climbing Higanbana
A skill from Koo. Koo learned it from his mother. A giant higanbana blooms directly below enemies. The giant flower can be jumped to. <img key="Action_Attack"/> → <img key="Action_Player_SwordTechniques"/>
Abilities
Core abilities
Landmines
Koo periodically places landmines during combat.
Healing Flowers
Koo can create flowers that restore Emma's HP.
Restraint
Koo can restrain individual enemies or groups of enemies.
Provoke
Koo can draw enemy attention away from Emma.
Reactive Counter
Koo can counter enemy attacks.
Exploration abilities
- Item pickup and crafting
- Hidden-item detection
- Trap detection and dismantling
- Fishing assistance
- Amber actions
Friendship rewards
| Friendship limit | Rewards |
|---|---|
| 100 | Friendship ×12 · Skill Slot ×2 · Resuscitation ×1 · First Aid ×1 |
| 200 | Friendship ×16 · Skill Slot ×3 · Resuscitation ×1 |
| 300 | Friendship ×12 · Resuscitation ×1 · First Aid ×1 |
| 400 | Item ×1 · Friendship ×12 · Skill Slot ×4 · Resuscitation ×1 |
| 500 | First Aid ×1 |
| 600 | Skill Slot ×5 · Resuscitation ×1 |
| 700 | Resuscitation ×1 |
| 800 | Skill Slot ×6 · Resuscitation ×1 |
| 900 | Koo Research ×2 |
Friendship milestones
Friendship rewards include additional skill slots, Resuscitation, First Aid, and Koo Research. The final recorded milestone is 900.
HP progression
The source currently records Koo's HP progression through level 100.
Level 1
2,080 HP
Level 25
2,200 HP
Level 50
2,325 HP
Level 75
2,450 HP
Level 100
2,575 HP
Experience progression
Cumulative experience values are recorded for levels 1–200.
Level 200
590,170
Total EXP
Data notes
- •The record defines a max level of 200, but the supplied HP progression currently ends at level 100.
- •The experience cap is 616,590, while the level 200 total EXP is 590,170. Both values are shown as supplied.
- •The page uses the available Koo artwork for the primary image; the remaining source paths are preserved in the gallery as pending mappings.