As a fan of the series, I considerably had fun reading it. It brought a lot of things I've enjoyed from a world building point of view. It mostly focused to certain points not introduced yet on the original manga. I wouldn't recommend this to someone who hasn't read ahead of the LN but as someone who is, it brought a lot of visuals to the things I could only read from the LN. Although Mamono no kuni mostly focused it's theme on the exploration of the world but I doubt it will be enjoyable to everyone since it mostly focus on the mundane partsof the story. The character interactions mostly are predictable but still enjoyable, although the lead character seemed to need a bit of work, it's fun overall within the bias of the illustrations for the world.

I could whole heartedly say I enjoy it within the bias of being a fan of the series so take this review with a grain of salt.