I Started My Life of Cultivating Immortality Again

Xiao Yu traveled through time and was reborn, luckily his name was Xiao Yu... What should I do if my spiritual energy is scarce? What should I do if bullies bully me? What to do about monsters and monsters? Although the protagonist does not have a strong background, we are not afraid. I have the skills to cultivate immortality, a good brain, courage and knowledge... Then let's see how I work hard and be a savior... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.