After Being Transformed into Cannon Fodder, I Won by Lying Down

Reunion➕reunion After Long Separation

I read a novel about reunion before. The heroine took the initiative to find the hero, and then the heroine was the CEO. After meeting the heroine, the hero began to cheer up and work hard to improve himself in order to be worthy of the heroine. The heroine's nickname seems to be Lulu. Does anyone know what the book is?