Linde travels through the world of anime. Curafia is his adopted sister, Rias is his childhood sweetheart, and even after awakening his system, he can recruit his own demonic followers. From then on... the demonic contracts begin to spread across the universe. ... Curafia: Linde, I'm no longer content with just being a adopted sister. Rias: Linde is my only fiancé. Miyano Shiho: Master, can you replenish my demonic power? Esdeath: Master, please make me stronger. Nakiri Erina: My divine tongue is the best. ... Unknowingly, Linde has transformed the universe into his own pasture.