The Rise of Swordsmanship from Another World

The protagonist is invincible in his own world, lonely in the world, at the pinnacle of the world, and occasionally feels something, shatters the void, and mistakenly enters a wild upper level interface filled with all kinds of powerful monsters. He finds that his strength cannot even match an ordinary monster. What is happening in this world? Let's see how he grows up, discovers the secrets of this wild world, kills the gods and demons, and saves the world. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.