Yuuto, Elf, and Anko slept in the same room but, that room had a partition as a wall separating the beds. There is a habit when Yuuto sleeps, he turns off the lamp that is the source of lighting in this room.
Yuuto's private room was a peaceful and spacious place but, every time he slept, he was always delirious whether it was he was dreaming or he was delirious because of something else. Moreover, the sleeping Yuuto still maintained his vigilance. He hadn't revealed what abilities he possessed in these two girls however, he put on the transparent shield that Yae had previously put up. He remembered it, it was said that the shield was an object that was not easily penetrated. It's not enough to just be a screen, it turns out that the lack of trust in other people is shown by his actions in putting up such a shield.
