Talk:Otto Suwen/@comment-73.213.158.14-20191002001410/@comment-29781768-20191002233317

Because the White Whale erased them from existance and from people's memories.

There are two types of mist; a mist that the Hakugei swims around in, which is known as the Mist of Mental Contamination (精神汚染の霧 Seishinosen no Kiri) and can also cause an effect similar to mana poisoning, and a second mist dubbed the Mist of Elimination (消滅の霧 Shōmetsu no Kiri), which is capable of erasing victims along with any memories the surroundings have of them, and both are released from the many glands across its body.