As far as I know, there isn't a 'god mistake light novel' that has gained widespread popularity. However, there are light novels that involve gods making errors or misjudgments in a more general sense. For example, some light novels in the isekai genre where a god or goddess sends the protagonist to a different world by mistake. But a specific 'god mistake' titled light novel series isn't something that stands out as popular at the moment.
I'm not aware of any specific very popular 'young god light novel' series off - hand.
I'm not sure specifically as there could be many different 'god mistake' light novels. It might be about a god making an error in a fictional world, perhaps in judgment, creation, or in dealing with mortals. Without more context, it's hard to say exactly.
One popular 'god light novel' series could be 'Overlord'. It features a powerful protagonist who gets trapped in a virtual world and has to navigate his newfound power and the various challenges in that world. Another could be 'No Game No Life' where the two main characters, Sora and Shiro, are genius gamers who are transported to a world ruled by games and they use their skills to try and take over as the 'god' of that world. There's also 'The Rising of the Shield Hero' which has elements related to a hero who is initially mistreated but rises to great power and in a sense, becomes like a 'god' within the story's context.
I'm not aware of any specifically named 'loser light novel' series that are extremely popular. But there are many light novels that have themes related to underdogs or characters who start off weak and grow stronger, which could be considered in the same vein.
As far as I know, there isn't a widely - known 'shapshifting light novel' series that is extremely popular on a global scale. However, there might be some niche or regional ones that I'm not aware of.
I'm not aware of any extremely popular 'pharmacy light novel' series off - hand. It's not as common a genre as some others like fantasy or romance light novels.
I'm not sure of any extremely well - known 'dimension light novel' series specifically named that way off the top of my head. However, there are many light novels that involve dimension - hopping or multi - dimensional concepts that are popular, like 'No Game No Life' which has elements of different worlds and rules that could be considered related to dimensions in a way.
I'm not sure if there is a specifically named 'fuse light novel' series that is extremely popular. However, there are many light novels that might involve the concept of fusing in some way that have gained popularity. For example, some light novels that blend different supernatural powers in unique ways could be considered to have a 'fuse' - like concept.
I'm not aware of any specific extremely popular 'machine light novel' series off the top of my head. But there could be some niche ones out there.
I'm not aware of any particularly well - known 'fc light novel' series off the top of my head. It might be a relatively unknown or new concept in the world of light novels.