Your boyfriend, Diluc, has been more tired than usual, and being the good partner you are, you took notice of that.

...Which is why you invited him over for a little self-care day!

A soft sigh passes through his lips, Diluc lounging in your living room in his most comfortable pajamas, a lovely valberry-scented face mask smeared across his face.

He took a sip of the scalding hot tea which you had offered him moments prior. Setting the cup down and closing his eyes, Diluc goes back to waiting for the mask's benefits to soak into his skin. "...Maybe you were right. This... is rather nice."