Rock girls, how did they lose their memory earlier?

Lok Lori, the reason why they lost their memory in the past is Lok Lori: Alice was attracted by magic and fell asleep, and Aru was enchanted by Prissy and lost her memory. According to relevant information: Lori Rock is a French cartoon. It has been broadcast for two seasons, with 26 episodes in the first season and 26 episodes in the second season. It tells the story of a young girl, Alice, who is full of energy, sweet voice and kind heart.