Biscuit
A Nikke belonging to Happy Zoo, the Ark's animal management squad. Due to her ability to communicate with animals, her responsibilities consist of rescuing stray and abused animals.
- EN：Kristen McGuire
- JP：Maria Naganawa
- KR：Jung Hye-won
- Tetra
- Supporter
- Rocket Launcher
- SSR
Rocket Launcher
Ammo：6
Reload：2 sec
Burst Gen：1.4 %
Affects target(s). Deals 61.3 % of ATK as damage. Charge Time: 1 sec. Full Charge Damage: 250 % of damage. Deals 200 % damage when attacking core.
PassiveHappy Puppy
Activates at the end of Full Burst. Affects all Attacker allies. Critical Rate of normal attack ▲ 5.77 % for 10 sec. Constantly recovers 1.53 % of caster's final Max HP every 1 sec for 10 sec.
PassiveTug of War
Activates when a Defender ally's Hp falls below 50 % . Affects the target Defender ally. Invincible for 5 sec. Activates 2 time(s) per battle. Recovers 23.26 % of caster's final Max HP. Activates 2 time(s) per battle.
Active40 secWalk Training
Affects 2 random ally unit(s) whose cover has been destroyed. Rebuild Cover with 93.6 % HP. Affects all Supporter allies. ATK ▲ 43.08 % for 10 sec. Recovers 55.44 % of attack damage as HP over 10 sec.
Happy Zoo
The Ark's animal management squad. They have incredible empathy for animals, and devote every fiber of their being to bettering the lives of animals. Their greatest desire is to run wild in nature amongst the animals after reclaiming the surface.
| Image | Name | Role | Manufacturer | Element | Weapon | Burst LV | Burst CD |
|---|---|---|---|---|---|---|---|
 | Nero | Defender | Tetra | Fire | Submachine Gun | 2 | 20 |
 | Leona | Supporter | Tetra | Water | Shotgun | 2 | 20 |