Code Name Succubus: A Triple Agent in Shanghai

The modern-day thug Ma Yifei, a forty-five-year-old bachelor with no children, no wife, and no family, shows kindness for the first time by helping an old woman cross the street. A dump truck then sends him to the twenty-seventh year of the Republic of China in a parallel world. He wakes up in a military intelligence training camp in Mountain City, in the body of another Ma Yifei: twenty years old, 180 centimeters tall, devastatingly handsome, in incredible shape, and very well-endowed. On Boss Dai's orders, he is sent to Shanghai to go undercover and gather intelligence on the Japanese and their puppet regime. With no choice but to accept his fate, Ma Yifei infiltrates Shanghai. While aboard the ship that takes him there, he activates the System. It grants him a succubus physique, increasing women's attraction to him by 500% and reducing men's hostility by 150%. (The succubus physique is a secret, and nobody can see it.) He also gains fluency in every language and a 100-cubic-meter inventory space, which lets him retrieve objects through the air with his mind from within ten meters. Thus begins Ma Yifei's career as a flirtatious spy.