They don't. In battle with ordinary Harpy (not elite) if you'reWhen u become friends with Trudy and Kylira u get a unique ability in battle (Kylira heals you, Trudy buffs your damage) and they also train you (Trudy gives you 6 skill points and Kylira also does something). I assumed Urka and Warlock do the same
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's slave and surrender at less than 20 HP, she can come to battle with a short scene.Same with
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who resques you from Wereslut if you surrender her battle on low HP. The scene is different with Werewolf × Catgirl. Warlock can create a reusable portal to first town after a long quest. Urka basically does nothing but fuck you in the inns and camp various ways.