“You’ve been marked by the Osk Faction. Not just marked, they’re prolly gonna do even worse things to you! But if you’d like to be friends with Puk, Puk’ll provide you protection from them!”

She’s trying to recruit her into her faction by offering a shield. She might be using kind words, but her true meaning was rotten to the core.

Would it be fine to believe her despite this? There was a lot of motivations to hire talented Magical Girls into your faction. Not to mention, Puk Puck’s words were somehow trustable.

Magical Girl Raising Project: ACES, Chapter 1