Ultra: My Succubus, Ultra, Was Stepped on by Carmilla.

A game called Ultra Era came to reality. When others awakened as Tiga, Cero, Ace, and Oubion, only Wu Junyu awakened as an unknown and ordinary miscellaneous soldier. What's even more unlucky is that when he transformed for the first time, he happened to bump into Carmilla and was stepped on by the angry Carmilla. Fortunately, he was bound to the succubus system, and the men who attacked him would become the opposite sex and strengthen his attributes. The women who attacked him would establish a bond with him. The higher the bond, the higher the attribute bonus for Wu Junyu. From then on, the style of this world changed suddenly, and all kinds of villains were forced to become women and began to hunt down Wu Junyu. Beria: I will definitely kill you! ! ! If that kid Jade sees it, I'm afraid he won't turn into junior fellow student Wa and call me mom! Tregchia: Haha, it's good to experience what it's like to be a woman. Little brother, you've successfully aroused my interest. It's best not to let me catch you~ (sneer). Zhouda: Damn you bastard, should Gina call me brother or sister? I will fight with you! Camila: He is so handsome, he is so handsome! Grigio: Brother Junyu is so amazing, he is like a superman! Ampera Star: Damn it, how did I change from an emperor to a queen? If I catch you, I will definitely not get you any good results. ....... Looking at a group of villains full of resentment, Wu Junyu felt helpless: "Please, I am innocent! It was not me who harmed you, it was God who harmed you!"