The Strongest Teacher in History

I am a teacher, and students all like to call me master; I was just an ordinary person, but I became stronger and stronger because of teaching my disciples; Until he is so powerful that he can sit in the sky and be invincible in the world! I will choose to go to another world, and just wander from world to world. When I come back to my senses, I will find that my disciples have spread throughout countless time and space... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.