Mastering the Recovery Spell Suddenly Makes You Invincible

Ling Fan, a time-traveler from the world of immortal cultivation, had extremely low aptitude for immortal cultivation. He could only combine his own knowledge and intensively research recovery spells, and use other immortal cultivators as experiments. He unexpectedly became an invincible immortal cultivator.

Original Webtoon:
AC.QQ, BiliBili, KuaiKan