Cultivating the Demonic Path Starting from a Waste Spiritual Root

In this life, it would be difficult to even break through to the mid-stage of Qi Refinement. The immortal sects would not accept me, and immortality would remain out of reach. Coincidentally, the demonic sect was expanding its influence, scavenging low-aptitude individuals from all over to serve as "Spirit Slaves." Through demonic arts that consume one's lifespan, they cultivate batches of these "consumables," forcing them to damage their own cultivation to produce Spirit Sand for the sect's enjoyment. Abducted from Shihuo City to the demonic realms, Wang Yu entered the gates of the demonic path as a Spirit Slave. Fortunately, he possesses the 【Idle Slot】 to solve many of his problems! —————— 【Idle Slot 1: Blood Burning Art】 「Blood Burning Art (0/100): Forty-eight practices per day; mastery achieved in one year. 」 Ps: (The synopsis is lacking; please proceed to the main text)