Saphire Sickness is a very rare and old disease that if sun or moon light touches the body it turns blue and also turns to stone.
We also know its not infectious by touching or air it since Kuma touched Ginny and Bonney, and it didn't spread when they were in the village when people come close to their house.
So how did Ginny took this old disease if its not infectious by touching or air when she got captured?
Could it be that Nerona Imu has this disease and thats why he never travels outside of the world to prevent getting hit by sun light or moon light, and thats why he is covered in black clothes, but he managed to stay alive via the Ope immortality?
If Imu has this disease which is not infectious, then Ginny can catch it by only two ways via blood transfusion or having sex with the ill person, and since we know Ginny got pregnant its possible she took it when she have sex.
We also see before Imu wanting Vivi to be captured before this could be another hint that what happened with Ginny.
We also know its not infectious by touching or air it since Kuma touched Ginny and Bonney, and it didn't spread when they were in the village when people come close to their house.
So how did Ginny took this old disease if its not infectious by touching or air when she got captured?
Could it be that Nerona Imu has this disease and thats why he never travels outside of the world to prevent getting hit by sun light or moon light, and thats why he is covered in black clothes, but he managed to stay alive via the Ope immortality?
If Imu has this disease which is not infectious, then Ginny can catch it by only two ways via blood transfusion or having sex with the ill person, and since we know Ginny got pregnant its possible she took it when she have sex.
We also see before Imu wanting Vivi to be captured before this could be another hint that what happened with Ginny.