I transmigrate into Shanghai in 1937. The good news: I have a System! The bad news: it’s an affection-rating System for dating domineering CEOs! Even worse, the System realizes it’s in the wrong time period and actually runs off!
Staring at the names and professions above strangers’ heads, along with their affection ratings toward the people around them and toward their organizations, Xiao Ziguang suddenly realizes that the System running away isn’t entirely useless after all. Using affection ratings to gather intelligence might actually work.
And so, on the front lines of the War of Resistance Against Japan, the agent codenamed Black Tortoise obtains one piece of strategic intelligence after another, creating legend after legend.
Wonderful! It's a very novel angle and a very unorthodox golden finger, but if we can win the Battle of Songhu, it will be great.