You Become Stronger When You Teach as a Disciple, and You Never Hide Your Secrets as a Teacher

Traveled to the fantasy world, and obtained the return system. If you teach or give something to your apprentice, you can get a critical hit return. "Ding, you give your disciple a Green Shadow Sword. Ding, it will release a critical strike. Su Xi got a Tai'a Sword. Ding, you give your apprentice a Wandering Dragon Body Technique. Ding, it will unlock a critical strike. Congratulations on getting one step of the heaven-level body technique. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.