Warhammer: Primarch's Life from the Beginning

[No System + Official Setting + Physical Transmigration + Adventure] A young boy transmigrates to Warhammer City and is found by the Emperor, whose memories are erased, turning him into a member of the Imperial Guard and naming him Leo. After Leo's death, he regains his memories and is entrusted with important responsibilities by the Emperor. A rebuilt body, good. Granted warp essence, excellent. Primarch Zero? Me? Guilliman, you can just be the Regent; leave this troublesome state religion to me. Leo is nicknamed Little Emperor, the image of Luo Jia in his dreams, and the mastermind behind the resurrection of angels. He helps the Emperor share the burden of psionic energy, transforming into a warm golden sun in the warp. Damn it, everyone else has imposing Space Marines under their command, but most of mine are battle nuns! Leo vows to revive humanity and heal the Emperor, so he leads his crew into the vast ocean of space, the Hope sets sail!