Personal Butler — zenless zone zero

Personal Butler is Butler's Additional Ability.

Skill Scaling

	1	2	3	4	5
Energy Generation Increase (%)	20	25	30	35	40

Notes:
- Not all Bangboo feature a Bangboo Chain Attack Skill.
- The Additional Ability is only levelled through Core Upgrades.

System Optimization (Promotion)	Requirements	Cost	Result
10/20		Ether Electrolyte 4 Denny 15,000	Active Skill Level +1 Bangboo Chain Attack Level +1
20/30	Inter-Knot Reputation: Certified Proxy	Energy Transfer Fluid 12 Denny 35,000	Active Skill Level +1 Bangboo Chain Attack Level +1
30/40	Inter-Knot Reputation: Senior Proxy	Energy Transfer Fluid 20 Denny 75,000	Active Skill Level +1 Bangboo Chain Attack Level +1
40/50	Inter-Knot Reputation: Elite Proxy	Concentrated Cooling Fluid 10 Denny 125,000	Active Skill Level +1 Bangboo Chain Attack Level +1
50/60	Inter-Knot Reputation: Legendary Proxy	Concentrated Cooling Fluid 20 Denny 250,000	Active Skill Level +1 Bangboo Chain Attack Level +1

Core Upgrade	Cost	Result
1 → 2	Butler Core 1	Active Skill Level +1 Additional Ability Level +1 Bangboo Chain Attack Level +1
2 → 3	Butler Core 1	Active Skill Level +1 Additional Ability Level +1 Bangboo Chain Attack Level +1
3 → 4	Butler Core 1	Active Skill Level +1 Additional Ability Level +1 Bangboo Chain Attack Level +1
4 → 5	Butler Core 1	Active Skill Level +1 Additional Ability Level +1 Bangboo Chain Attack Level +1

Total Cost: (1 → 5 for one skill)

4

Language	Official Name
English	Personal Butler
Chinese (Simplified)	贴身管家
Chinese (Traditional)	貼身管家
Japanese	あなた様だけの執事
Korean	개인 집사 Gaein Jipsa
Spanish	Criado servil
French	Majordome personnel
Russian	Личный дворецкий Lichnyy dvoretskiy
Thai	Personal Butler
Vietnamese	Quản Gia Thân Tín
German	Persönlicher Haushälter
Indonesian	Personal Butler
Portuguese	Mordomo Pessoal

Released in Version 1.0 - Welcome To New Eridu

The wording of Personal Butler was changed:
- Old: Additional Ability
  When there are 2 or more Victoria Housekeeping Co. characters in your squad: Active Skill generates an additional X% Energy.
- New: Additional Ability
  When there's at least 2 Victoria Housekeeping Co. characters in your squad: Active Skill generates an additional X% Energy.