Persona 5 Royal Fusion Guide | Skill Inheritance and Treasure Demons

Quick Answer

Do not start a first run by chasing a final endgame Persona. The safer route is to build temporary Personas for each Palace: cover weaknesses, bring healing or support, and reduce Joker’s risk of being knocked down. The inherited skills matter more than raw level alone.

When To Fuse

Situation	Fuse?
Current Palace weakness coverage is poor	Yes
Joker keeps getting knocked down	Fuse for resistance or safer coverage
Your skills lag behind enemy pressure	Upgrade the route
You only want an endgame perfect build	Wait until later

Skill Inheritance Priority

Skill type	Why it matters
Weakness coverage	Directly improves turn economy
Multi-target attacks	Speeds up common fights
Healing and support	Extends Palace visits
Resist / Null style defense	Reduces Joker wipe risk
Damage passives	More valuable once builds specialize

How Treasure Demons Help

Treat Treasure Demons as fusion route modifiers. They can shift results and carry useful skills, but they should not be used randomly. First decide the target, level range, and inherited skills you actually want.

How This Connects To Fusion Alarm

Fusion Alarm is best when the target is clear. For example, make one Palace-ready transition Persona or cash in on a specific execution reward. If you enter the Velvet Room without a plan, alarms can burn money quickly.

Transition Build Template

Phase	Persona goal
Early	Cover common weaknesses and carry one healing or support option
Midgame	Add resistance, multi-target attacks, and a main damage lane
Late game	Start planning specialized damage, Null/Absorb coverage, and passives

Common Mistakes

Mistake	Safer choice
Looking only at level	Check skills and resistances
Forcing every alarm	Use alarms when a target is clear
Chasing perfect Personas early	Build useful transition Personas first
Choosing inherited skills randomly	Prioritize weakness, sustain, and safety