Kadokawa is the Japanese juggernaut publishing house responsible for bringing to the public beloved series such as Oshi no Ko, Re: Zero, Sword Art Online, Mushoku Tensei, Delicious in Dungeon, and many more. Before anime became such a popular media, Kadokawa built its empire on publishing light novels and other forms of literature. Many of these popular series appeared in Dragon Magazine, which launched in 1988 and has now officially ceased publication.