At first glance, Shin appears friendly, but a little reserved. He introduces himself as Sou Hiyori. He is withdrawn due to distrust of other members. Despite this, he helps everyone find out about the place they ended up in. Shin met Sou Hiyori in high school and their relationship seemed to be toxic in nature. When asked about Sou, Shin's AI calls Sou his "scary friend" and that Sou liked to see him scared and restless.


I'm friendly at first glance, but I'm reserved.

Sou Hiyori/Midori - a cruel and crafty person shrouded in mystery. He seems to have somewhat sadistic tendencies.Sou enjoys teasing and intimidating others for his own amusement, even in dangerous situations.He likes to embarrass others and play pranks on them.  He is rather controlling, preferring to deceive in order to remain in a dominant position.he loves to do it with Shin Tsukimi,these are my signs of love and he is my old friend, Midori fears his own death 