Isekai Quartet indeed has a manga. It offers a different perspective and sometimes delves deeper into the story compared to the anime. The manga can be a great companion to the animated version for fans wanting more of the Isekai Quartet world.
It's a fun and unique story that brings together characters from different isekai anime in one setting. There are comical interactions, battles, and new friendships formed among the characters.
The Eminence in Shadow light novel is finished. It provided a conclusive ending for the characters and their adventures, leaving fans with a complete narrative.
The Eminence in Shadow manga is indeed still ongoing. The creators are continuing to build the world and the characters' adventures. It remains popular among manga enthusiasts.