Fantasy: Give Me a Disciple and Get It Back Billions of Times, I Am Invincible

Gu Chen traveled through the fantasy world and became the youngest Supreme Elder of the Qingyun Sect, bound to the apprenticeship critical hit return system. As long as the disciple is given something, the system will return it, and the return will increase the critical strike multiplier. "Ding! You gave your apprentice a Foundation-Building Pill, and you will receive ten times the critical hit back to get the Nine-turn Golden Pill." "Ding! You gave your disciple a top-grade spiritual weapon, and you will get a top-grade spiritual weapon in return with a hundred times the critical hit." "Ding! You gave your disciple Xuan-level skills, and you will get a heaven-level skill in return with a thousand times the critical hit." … Gu Chen can get critical hits back as long as he gives items to his disciples. "Good disciple, I'll give you this ninth-grade monster's mount for transportation. You can also keep it as a pet." "Ah... Master, why are you going out to ride?" "Me? Master, it doesn't matter. Just do whatever you want." As he spoke, Gu Chen summoned the top-level emperor-level monster that the system would return after critical hits ten thousand times. Disciple: "..." Many years later, Gu Chen became immortal and ascended, and his disciples have become big bosses in various fields. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.