I'm not sure about its popularity. It might be popular within the niche of isekai and harem - loving audiences, but it may not be as well - known to a broader readership.
I'm not entirely sure as I haven't read this novel specifically. But generally, 'isekai' often involves a character being transported to another world. 'Harem' usually implies a situation where one character is surrounded by multiple characters of the opposite sex in a romantic or semi - romantic context.
I'm not sure specifically as the title is rather unique and not of a widely known mainstream work. It could potentially be about a second - chance life in an isekai (another world) setting within the context of a Japanese - style novel (the 'j' might stand for Japanese).
Well, without having read the 'nidome no jinsei wo isekai de j novel', it's hard to say for certain. But generally in isekai novels, the story often involves a person being transported to a different world. So perhaps this one is about someone starting a new life in an isekai, perhaps with some unique abilities or a special mission. It might also explore themes of self - discovery and growth in this new world.
I'm not entirely sure what 'hombre novel' specifically refers to as it's not a very common or well - known term. It could potentially be a new or niche genre in literature related to stories about men. Maybe it's a made - up term for a type of novel that focuses on male characters in a unique way.