Lord of the Mysteries is by a chinese author. But I think Shadow Slave is by a Russian author?
Shadow Slave have Manga Update page though.
https://www.mangaupdates.com/series/rblq3iv/shadow-slave-novel
Lord of the Mysteries is by a chinese author. But I think Shadow Slave is by a Russian author?
Shadow Slave have Manga Update page though.
https://www.mangaupdates.com/series/rblq3iv/shadow-slave-novel