Age of Spirits: Invincibility Starts with a 10,000-Fold Return!

Lin Yu traveled to a parallel world, where there was a spiritual being named the Ghost Controller. When everyone turns eighteen, they can choose a ghost to make a contract with. If the contract is successful, you will become a spirit person. Otherwise, if you fail, you can only become an ordinary person. He was very unlucky. Even if he succeeded, he would only be able to contract an F-level ghost. Fortunately, the arrival of the 10,000-fold return system changed his fate. As long as you feed your own ghosts, the effects received will be returned ten thousand times. "Ding! If you feed the ghost spirit "Stupid Loli" a second-grade Yang Qi Pill x100, the ghost spirit's power will increase by 0.001 "Ding! If you feed the second-grade beauty elixir x100 to the ghost "Stupid Loli", the ghost's charm will increase by 0.001X100, and the charm attribute will be returned ten thousand times +1000!" "Ding! You feed a can of Wangzai milk to the ghost spirit "Stupid Loli", and the ghost spirit "Stupid Loli" happily nibbles on you, and you will get ten thousand times the reward!" After countless returns of ten thousand times, "Stupid Loli" was raised into an empress by him. And Lin Yu is invincible in this world!