High School DxD: My Big Sister Is Grayfia Lucifuge

Alex transmigrated to a multiverse world. Grayfia is his stepsister, and Rias is his childhood friend. He also awakened a system that allows him to recruit his own Demon Retainers. From then on… Demon Contracts began to spread across all the myriad worlds… Grayfia: Alex, I’m no longer satisfied with just being your stepsister. Rias: My fiancé can only be Alex. Shiho Miyano: Master, can you replenish my magic? Esdeath: Master, please make me stronger. Erina Nakiri: My God’s Tongue is the best… Unbeknownst to him, Alex had turned all the myriad worlds into his own ranch. — Description from novelcodex.orgFull novel: High School DxD: My Big Sister Is Grayfia Lucifuge — read the rest free on N​o⁠v​e⁠l​C⁠o​d⁠e​x⁠.​o⁠r​g⁠