Naruto: I Get Ten Thousandfold Returns for Teaching, and Never Hold Back

Lin Xiao transmigrated to the Naruto world and became an ordinary member of the Yuhi clan, unable to cultivate. Fortunately, he awakened the Disciple Mentoring System, which returned whatever he taught his disciples, multiplied by a certain amount.

“Ding! You taught your disciple the Demonic Illusion: Hell Viewing Technique. It triggered a ten-thousand-fold critical bonus, granting you Mirror Flower, Water Moon.”

“Ding! You taught your disciple the National Primary and Middle School Students' Third Set of Broadcast Exercises. It triggered a ten-thousand-fold critical bonus, granting you the Five Animal Frolics.”

“Ding! You taught your disciple the chakra extraction technique. It triggered a ten-thousand-fold critical bonus, granting you the Taixuan Scripture.”

Years later, Lin Xiao's disciples each became overlords of the shinobi world.

Third Tsuchikage: Who said Konoha didn't have enough manpower to fight on multiple fronts? Just one of Lin Xiao's disciples is worth ten thousand of our men!

Orochimaru: As everyone knows, I'm a scientist. Raising two Hokage from the dead with Impure World Reincarnation for self-defense is perfectly reasonable.