In Someutsushi we get to see what happens after GHD, which is something we don’t always get to see. We’ve seen it before (Rena survived in Tsumihoroboshi), but in most worlds we don’t see much after the GHD occurs.
But watching Natsumi’s decent into madness kinda made me sad. Since she doesn’t live in Hinamizawa, all of her friends exist outside of the village. Since they live outside of the village, they aren’t directly affected by the GHD. They just get to know Natsumi, and watch her go crazy. They just have to sit by as she murders her family (as well as Toudou), before eventually ending her own life.
Kinda like in Onikakushi, I think a lot of the problems in this chapter could be solved if there was more communication and trust amongst the friends. Secrets really aren’t helping anyone, and Natsumi should just be honest with her friends. Instead, she choose to keep her secrets, which ended up furthering her paranoia.
Unlike Onikakushi, all of her friends in this world (other than Toudou) are going to live. Since this world exists outside of Hinamizawa (and the GHD already happened), we know that they will live on. Unlike Keiichi’s gang of friends, they won’t all die together. So Chisato and Tamako will have to live on asking themselves, “what could I have done to avoid this tragedy?” I think it’s safe to say that unlike everyone in Hinamizawa, these two girls will live out their entire adult lives unaffected by anything else.
One of the saddest things in the world is watching someone else die and know that there’s nothing you can do about it. Those living in Hinamizawa don’t really have to live with this grief (other than Rika and Hanyuu) since they all more or less die at the same time.
But yeah, this arc really made me question, “How many people outside of Hinamizawa are affected by GHD?”