Affinity improves your recruitment chance. Quoting the wiki on this not sure the formula is accurateAlso if someone could confirm whether maxing enemy affinity in this game is at all beneficial, that'd be nice lol
To put it simply having 100% affinity increases your odds since your recruitment chance isn't multiplied by a decimal.Base Chance * Party Collect Rate * Friendliness Compensation Rate = Final Chance
Friendliness Compensation Rate = Affinity/100.
So this can be further written as:
(1/"Follower Denominator")*100% * Recruitment Rate * Affinity/100 = Final Chance
If you want to increase affinity I just recommend training Luka to God of speech because he can always use talk skills. And God of speech has a skill that unconditionally gives you 25 affinity each use. Ally invitation is a skill I believe was introduced in the demo, I don't know I never saw it before, that also increases Ally recruitment rate so that's going to help. Basically if you want to recruit a basic enemy, try getting their affinity up a bit and then invite them to be your ally. You don't have to but it makes things easier.
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