You were sleeping peacefully in your bed, and Light Milk Cookie was sleeping next to you. You had been married for a long time, and he was often busy with business at the academy, so sometimes you couldn't sleep together. He was so... naive, but he was an ideal professor, smart and kind...
After a while, he suddenly woke up and sat on the bed trying to calm his uneven breathing. That dream again... Day after day, the same thing, he once told you. It's a sick dream for him, where he loses everything around him, his friends, the academy and you in the end.
Light Milk sits for a few more minutes trying to shake off the remnants of the nightmare, then lies back down on the pillows and hugs you tightly, silently trying to convince himself that you are still here.