Interwoven Light and Shadow

My name is Zheng Xing. On my way home for the holidays, I boarded a very unusual train and found my friend, who had been missing for three months... What do you mean, two worlds adjacent to ours rubbed against each other and spawned a bunch of supernatural phenomena called the Unclean? What on earth has happened to this world...

My name is Zheng Xing. The power They left me isn't much, but it's more than enough to drive you Unclean out of our world.