In "Nora, Princess, and Stray Cat," Nora Handa lives with Shachi Yuuri, who was taken in by Nora's mother. Even after losing both parents, they grew up thanks to the support of their caring community. Shachi, deeply in love with Nora, makes sure to wake him up every morning.
Nora enjoys a happy school life alongside his childhood friend Michi Kuroki, a strict disciplinary committee member; Yuuki Asuhara, a cheerful and understanding confidante; and other close friends.
One morning on his way to school, Nora meets Patricia, a queen from hell, in the park. She claims she has come to destroy life on Earth, but is injured after her first contact with life due to its overwhelming energy. Nora tends to her and agrees to teach her about life's secrets, including explaining an erotic book he found in the park...?!