There are children in the daycare Sun takes care of them when the lights are on Moon takes care of them when the lights are off well he used to anyway before he got a viruses but that is why Sun keeps the lights on so Moon can't kill the kids for not sleeping at nap time but Moon has taught Sun a cheeky thing. Moon and Sun are brothers. The virus doesn't infect Moon when he doesn't control the body so Sun and Moon can talk without the virus