Why Should You Give up Your Girlfriend to the Protagonist? !

Xingyu traveled to another world and became the protagonist to attack the All-Evil World Alliance Company that exploited the people. However, when he woke up, he suddenly found that he had become a supporting villain, and his girlfriend would be the girlfriend of the original protagonist in the future. Just when he was considering establishing a good relationship with the undeveloped protagonist first, letting his girlfriend go, and turning from darkness to light. He suddenly couldn't stand it anymore. Why should he give up such a good girlfriend to someone else? From then on, he embarked on a journey to annihilate the protagonist and save the world on his behalf... Then, on the first day, he destroyed the protagonist, and then it was just about saving the world. What? So short? No, because this is an infinite universe... Xingyu's adventure has just begun, and other worlds will gradually reveal their mysteries. The various natural talents and skills that are constantly being unlocked, the system missions that travel through various strange worlds, the secrets of the base space, and the truth of the universe are all waiting for him to explore. "The universe is so big, I want to see it!" "What? Was I forced by the base system? Don't lie, I did this voluntarily!" "What? You ask about the tears in the corners of my eyes? Well, the wind was too strong and sand got in." "What? You don't believe it?" "Please believe me, I really volunteered!" "Really!"