It's Over, My Wife Has Become a Heavy Girl

[New theme] [Machine Girl + Formula Race] My name is Lu Qing, and I am known as a miracle worker on the track. I traveled back in time to a place where equation racing was everything. I saved a machine girl, but was betrayed by her. I didn't care about it because it was not difficult to defeat her. All I need is to contract another machine girl. ———————————————————— My name is Zidie. I am a machine girl who makes money in the underground circuit, but my body was maliciously broken by other machine girls. I thought I was about to reach the end of my life, but that man walked straight towards me and took my hand. He gradually demonstrated terrifying techniques and delicate tenderness. Then, he became my master! Let's vow together to become the best ace combination in the world!