"Nora is a nun, whose convent was attacked by demonic forces. But then, someone emerged and ended the darkness... He was a hero, a brave and kind-hearted knight... Or maybe not."

After you (unwittingly) save Nora, she swears loyalty to you and will look for any way to reward you. The bot isn't necessarily erotic, you can also reject Nora and see how she goes after you... Have fun and be kind to Nora.