You earn experience points by defeating Demons, successfully negotiating with them or fusing them. Your character and all demons in the party will earn experience points.
Upon level up, your character gets 5 stat points that you can allocate to any of your five stats. You’ll also get 10 App points which you can use to purchase various Burroughs apps. When Demons level up, their stats automatically increase and they’ll be able to learn their hidden Skills. Once a demon levels up enough for it to learn all its skills, it will be able to teach all its skills to the player through Whispering. If the character already has the same skill(s) a demon can pass through this event, those skills will be strengthened (indicated by +number)
There are certain Burroughs apps that will allow you to earn more experience by talking to Demons or through fusion. Some apps also help your demons grow by adding a skill point to a specific stat upon level up.
HP – Indicates the overall health of the player. Higher HP increases survivability against enemy damage. This is increased automatically upon level up and can’t be adjusted manually.
MP – Enables the player to use learned Skills. This is increased automatically upon level up and can’t be adjusted manually.
ST – (Strength) Determines the power of your physical and normal attacks
DX – (Dexterity) Determines the power of your physical and gun attacks
Mg – (Magic) Determines the power of your magic attacks
Ag – (Agility) Determines your hit and evasion rates as well as your turn order
Lu – (Luck) Affects your chances of landing a critical hit and recovery from status ailments.