Moroboshi!

Basically this au is about how some darkners are half lightners too, and how staying too much in one world affects them, some of them have to stay in the light world for a long period of time some have to stay in the dark world, some will need to do a transition to living their whole life in the dark or light world, the au is following seam who happens to have a half dark half light soul, most of their life they lived in the light world besides Nakomi ( my oc ). At some point in their life their health started to decline at an early age, which was not normal. In this au Gaster/ the man who speaks in hands is involved too because Nakomi and Gaster have a strong connection. That’s when both Nakomi and seam find out that a second world exists. Seam has no choice but to move into that world and keep their health in check. In the meantime Nakomi is trying to find a cure for this thing so seam can live in both worlds without any complications. Ofc later on we’ll see the trio too but I didn’t think that far yet