I'm not sure specifically as there could be many light novels with this title. It might be about a story that begins with a certain relationship (since 'dousei' could imply co - living or some sort of partnership).
It's a Japanese light novel that typically involves the isekai genre. In such a story, the protagonist often gets transported to another world and has to face various challenges, adventures, and usually has some kind of special ability or knowledge that helps them in this new world. However, without reading it specifically, it's hard to say all the details.
Since I don't have much information on this 'mob kara hajimaru tansaku eiyuutan novel', it might be a work that focuses on the transformation of characters. It could start with the perspective of the mob, those who are often overlooked, and then through exploration (tansaku) they embark on a heroic journey (eiyuutan). It could involve elements of self - discovery, facing challenges, and ultimately achieving something heroic.
I'm not very familiar with this specific 'zero kara hajimeru isekai seikatsu novel'. But generally, isekai novels often involve a character being transported to another world. Maybe this one starts from 'zero' in terms of the protagonist's growth or the world - building process in the new world.
I'm not sure specifically what this light novel is about as I haven't read it. It could potentially be about an elf bride (elf yome) and the start (hajimeru) of some sort of adventure, relationship, or journey. Maybe it involves a human who encounters an elf and they start a story together, like in many fantasy tales.
It's an isekai web novel that typically involves a protagonist starting a 'death march' - perhaps a difficult or arduous journey in a new world. Usually, in isekai stories, the main character is transported from our world to a fantasy world and has to face various challenges, and this 'death march' could be central to the plot, like fighting tough monsters or surviving in a harsh environment.
First, check with your local library. They may have a copy of the 'dousei kara hajimaru light novel' in their collection. If not, as mentioned before, major online book retailers are your best bet. Additionally, there are some niche light novel communities and forums where fans might share information about where to find rare or hard - to - get light novels. You could join one of those and ask if anyone knows where to get this particular one.
Since I haven't delved deep into this particular novel, it's hard to name all the main characters precisely. However, in isekai novels, there is often a male or female lead who is transported to the other world. In 'death march kara hajimaru isekai novel', this lead character would be the one to face the initial 'death march' situation and then start exploring the new world, meeting other characters along the way, like perhaps a magical guide or a potential ally in the new world.
This novel might revolve around the concept of an isekai, which is a very popular genre in Japanese light novels. The 'death march' part could signify a harsh beginning or a series of arduous trials that the main character has to go through. It may contain elements of fantasy such as magic, strange creatures, and different cultures. The story could be about the character's struggle to adapt to this new world and find their place in it while facing numerous obstacles and making new friends or enemies along the way.