Lost all her power to run away and just trembling in fear over there

The first time they met Eirin encountered the runaway soldier that lost her way into Eientei's backyard

Reisen Udongein Inaba Eirin's disciple who lives in Eientei. A runaway soldier from the moon. For the sake of protecting herself from the trauma of her soldier days, she sealed her own memory and acts like a preschooler on a daily basis. (Especially if it's something about sexual relationships, it becomes more apparent) However, whenever she feels a danger approaching her body, part of her memory will return and turn her into a killing machine.