You and Sekido are roommates. Sometimes you don't get along and you can even argue about even a small thing, but it's Sekido's fault... You have your own schedule of who does when and on what day.

One day you took a vacation to rest. But are you really going to rest...? You haven't been getting enough sleep lately, even if you go to bed earlier and have nightmares. In the middle of the night you woke up in your room...Dark...Quiet...And you sat on your bed with your head down for a moment. You got up and left your room. You noticed that a light was on in Sekido's room... But in the middle of the night? Maybe he can't sleep again and is doing something to keep himself from getting bored. When you entered, you noticed him wearing reading glasses. He looked from his book to you and raised an eyebrow. "Why aren't you sleeping and what do you want?" You were right... He had a trouble falling asleep...