"I will not." Dark promised, and actually kept his promise. In fact, he only ended up cleaning for about an hour, which was a line he had to learn to draw with himself, because after a certain point, the light just wasn't there to support what he needed to do. When he felt satisfied with the the night's work, he stretched, put the cleaning supplies away, washed his hands, and went upstairs to check on Daizi.
"Has she gone down yet?" He asked softly, having made sure to shut off the hall light before opening the door.
"Only just," Daizi replied, "I'm afraid to move. I think she'll wake up again."
"You will have to eventually."
Daizi sighed, rubbing Ivy's back, "I know. But not yet."
For a few moments, Dark stood still in the doorway, his form just becoming another shadow in an unlit house, then he asked, "May I join you?"
"You never have to ask, Goose."
When he came in, Dark sat on the footstool, so when Daizi felt ready to attempt to lie Ivy down, she wouldn't have to risk jostling Ivy as she got up around her husband. Somehow, it was almost nostalgic as they found themselves repeating what had worked when their daughter was new to the world. Daizi's fears were confirmed when not long after setting Ivy down in her crib, she forced herself awake and needed to be soothed back down again, so both of her parents decided to settle into the rocking chair and wait it out, and come morning, Daizi woke up stiff in the rocking chair, and found her husband still very much awake, holding their daughter.
"I guess I'll go and make breakfast," She yawned, rubbing her face, "You shouldn't stay up all night like that."
"It was worth it, she slept as long as I held her." Dark replied tiredly.
"Let me take her now, you go and lay down," She commanded, and went downstairs as soon as Ivy was awake and fed to make breakfast for their other children.