Moto Kizoku Reijou de Mikon no Haha desu ga, Musume-tachi ga Kawaisugite Boukenshagyou mo Ku ni Narimasen

A world where monsters run rampant. A noblewoman falls from grace and loses everything after being falsely accused. But, she started a fresh life as an "Immortal." She became an adventurer capable of defeating disaster-rank monsters and taking the heads off ancient dragons with a single swing of her