How Come I, an Immortal Cultivator, Have Become a Beautiful Girl's Familiar?

Because of a contract, he inexplicably traveled to another world and became the familiar of a beautiful blonde girl? Because you can jump between two worlds repeatedly, and you can also use the gift of the gods for free? —————— There has always been debate about the most powerful familiar. Some people say that Behemoth is physically strong and invincible in a long-term battle. Some people say they are dragons who are both physically and magically strong. Some people say that they are elves or demons with unlimited potential. "Okay, no need to fight now, the strongest familiar is here." Li Ru crushed Beamon's fangs, his whole body was wrapped in bloody aura, and holy light runes faintly appeared on his immortal gold body. Flesh and blood are the furnace, and the spiritual veins are the cauldron. "What does it mean that my whole body is full of blood and energy? I used evil demon heretics to improve my strength? As my strength has improved, I will soon become evil demon heretics? Then let me ask you, do you think there is evil energy in me?" "The gods in your own world can't control the people in my other world. The strength I have now is all due to my own efforts!" Li Ru muttered something.