wait did she erase his memories or not? (￣∇￣")

She did attempt to but it didn't work on him because he was too strong, if I remember correctly.

got it, but does she know it didnt work?

She doesn't realize in the novel, at least immediately after (I can't confirm the rest because I haven't caught up)

—

This is pretty much the short bit of her monolog after
"Meanwhile, the reason Tie was sniffling was very simple. ‘I really did it.’ She’d hesitated dozens of times before doing it. Because erasing someone’s memory isn’t a light thing. Until now, Tie had only erased the memories of the members and Governor Marianne. But that had been done with the other person’s consent, and—"
She feels overall really bad like seen in the webtoon ╥﹏╥ but luckily grandpa doesn't react negatively!