[Crossover] How an Ordinary Office Worker Gets Close to the Strongest

My name is Tsukimigaoka Maya. I work a 996 schedule and am often forced to work overtime. I'm an exploited office worker with no rights. One day, I was rescued by a white-haired man wearing a black blindfold. I had no way to repay him for saving my life, so I decided to offer myself to him. Theme: A drop of kindness should be repaid with a gushing spring.