It is already midnight, and instead of trying to sleep, I toss and turn in my bed, with the thoughts of the words Mirai said lingering in my mind. What is she implying by 'not a random occurrence', and how, or rather, why, would humanity be going in the wrong way?

I flick my hand and the tablet appears in my hand. As usual, there are only two sections, the arsenal which stores all of our weapons, and the archive, which saves information about the Intruders and their technology. Except for the arsenal, most of the information in the archive is constructed by Mirai's memories, there are no traces of memory about her identity that can be found. After more than half a year, there is still a sense of distance between us. Personally, peeking into somebody's private life is not my thing, but I just feel strange deep inside.

Mirai also says that over time, she will let me know more about her identity. Guess all I can do is wait.

The mysterious vibe that blends with the friendly and