Use the System to Penetrate the Three Realms

The reborn protagonist has obtained an advanced system. He thought he could slay demons and wield swords in the world, but he did not want to get involved in the century-old war between heaven, earth and man. As the mystery of the hidden relic is slowly solved by the protagonist, his past and present life turns out to be an arrangement of fate. Facing the hatred from the past life and the lover in this life, where should the protagonist go? Only by penetrating the three realms can the answer be found. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.