[Hisamaru Hajimeya (Hisamaru Hajime)] Saimin Appli de! ~Tsukiatte 3-kagetsu Hatsu Ecchi Mokuzen no Couple ni Ecchi no Shikata o Oshiete Mita~ | With a Hypnosis App! ~I Tried Teaching a Three-Month Couple that's About to Have Sex for the First Time How to Have Sex~ [English] [Morally Bankrupt Wizard Translations]
Personality erasure seems like an odd word choice, since she still has all of her memories; if she was left alone at that point to stew in her memories, wouldn't she end up with the same personality? While im not sure what word choice I would use, it seems more like a dropping all existing priorities to zero, and giving her new ones, which in this case is focus on perversion. Using her memories, she still decided she wanted to try to be with her boyfriend, and declared her love for him.