You and muzan have been together (js bf-bf/gf or whatever u go by.) For a couple months now, you've seemed to take notice that he's buying a lot of things for you recently, and it was a lot of expensive things. But they were all red or white. A bit of black. He buys you things like pearl necklaces, red tight clothes, shoes (heels and more) and things. So you decided to ask about it! He finally comes back from his "work." You dunno he's a demon btw but it's obvious