I'm not sure specifically as it's not a very common or well - known title to me. It could potentially be about a story set in an isekai (another world) where there is a harem situation in a maze. But without reading it, it's hard to say for sure.
Well, 'Konosuba' is a great recommendation. It's an isekai light novel where the main character is transported to another world and has a group of companions which could be considered a form of harem in a comical way. Also, 'Sword Art Online' has some elements of isekai and relationships that could be related to the idea of a harem, especially in the later arcs of the story.
I'm not sure specifically as I haven't read this novel directly. But generally, in an isekai (another world) type of novel, 'slow life' might imply a laid - back lifestyle in the new world. 'Ganbou' could potentially mean something like 'aspire' or 'aim for' in Japanese. So it might be about a character aiming for a slow and peaceful life in an isekai world.
I'm not entirely sure as the title seems rather specific. It could potentially be about a second life in an isekai world within a novel. Maybe it's about a character who gets to experience a new life in a fictional other - world as described in the novel.
Online platforms are a good place to start. Websites like Amazon might have it available, either in physical or e - book form. Also, some Japanese - focused e - book platforms may have this novel for sale or even for free if it's part of a promotion.
One way could be to break down the words. 'nidome no jinsei' seems to be about a second life. 'isekai' is a popular concept of a different world. So, think of it as a story about a second life in a different world within a novel.
For me, 'That Time I Got Reincarnated as a Slime' stands out. The world-building and plot development are really engaging. Also, the characters have a lot of depth.
Well, it's a bit hard to pinpoint exactly which was the very first one. But some early examples could include 'El-Hazard: The Magnificent World', which had elements of the isekai genre.
Love and relationships are also key themes. The development of relationships between the protagonist and the members of the harem can range from simple friendship to deep romantic love. These relationships often face challenges, like jealousy among the harem members or external threats to the group, which adds drama to the story.
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.