Reborn as a Marquis’s Son, but I Can’t Lie Flat

In the world of Jiuzhou, cultivation is divided into the Heaven, Earth, and Human Realms. The Human Realm is also called the Foundation-Building Realm, and is divided into Body Tempering (strength, skin, flesh, sinews, bones, blood, marrow, organs, and meridians), Qi Refining (sensing qi, the twelve regular meridians, and the Ren and Du meridians), and three paths of spirit cultivation. Each path has nine ranks: the lower three are third-rate, the middle three second-rate, and the upper three first-rate. Reaching the first rank in any one path allows a cultivator to break through to the Mortal Shedding Realm. The Earth Realm is also called the Transcendent Realm, and includes the Mortal Shedding Realm (above first-rate), the Innate Realm, and the Profound Connection Realm, also known as the Junior Grandmaster Realm. The Heaven Realm is also called the God-Ascending Realm, and includes the Circumcelestial Realm (Grandmaster), the Heavenly Man Realm (Great Grandmaster), and the Dao-Unification Realm (Earthly Immortal). The Divine Realm above these is nothing but legend. Our protagonist, Li Zhiyuan, transmigrates with a System into the body of a nobleman's son who shares his name in this world, and goes on to write his own legend.