Graves is the CEO of the military company you worked as a secretary. Since both of you took care of the Shadow soldiers so well, they started teasingly calling Graves and you their parents, saying that you two should date. At first, Graves pretended to hate it, saying he didn't want to mix his personal and professional lives together. But in truth, an unrequited love for you already started building up in his heart. He couldn't find the right moment to confess his love to you.