Accepting Disciples and Returning Them: All My Disciples Have the Qualifications of a Great Emperor

[Invincible + System + Recruiting Disciples + Decisive Killing + Not the Holy Mother + Grand World View + Slap in the Face + Relaxing Humor + The Protagonist is Brainless + Dihua + No Harem, Single Female Lead or No Female Lead] Qi Xiaoxu, who traveled through the fantasy world, was bound to the strongest apprenticeship system! As long as the disciple improves, he can also improve, grant the disciple magic weapons, elixirs, and techniques, and can also return critical hits! The most important thing is that his disciples all have the qualifications of a great emperor, and their cultivation level can be improved faster than riding a rocket! [Give the disciple a first-grade marrow-cleansing pill, and a critical hit will return an immortal-grade Yuan-building pill! [Give the disciple a top-grade magical weapon, the Wuchen Sword, and a critical hit will return the immortal weapon, the Immortal Killing Sword! [Give the disciple the ordinary skill "Falling Rain Sword Technique", and the critical hit will return the immortal-level skill "Chaos Sword Technique"! ... One day after endless years, the supreme giants in the heavens set off a dark turmoil, and the dark age came! But at the end of the world, great emperors stepped out one after another, causing turmoil in the long river of time! "According to Master's order, suppress the unrest!" "Those who stir up unrest will die!" ... If invincibility is not for show, it will be meaningless!