I'm not entirely sure as I haven't read it specifically. But generally, a light novel often has elements like interesting characters, a unique plot. It might be about a story where 'leviathan' is a central figure, perhaps a creature or a symbol in a fictional world filled with adventures, magic or some sort of complex relationships among the characters.
Since I don't have direct knowledge of this light novel, it might be about a leviathan - like being that is connected to covalent in an unexpected way. It could be that covalent represents a form of power, a force that binds things together in the story's universe, and the leviathan is either a creation of this covalent force or is in some way fighting against it. Maybe there are characters who are trying to understand or control the leviathan using covalent - related knowledge.
Since I haven't read it, I can't say for sure who the main characters are. They could be young heroes on a quest, or perhaps scholars researching the leviathan.
I haven't read it in detail, but generally it might involve a story set in a fictional world with its own set of rules and characters. Maybe there are elements of adventure, magic or some sort of power struggle.
Online platforms like Amazon or Barnes & Noble's website are good places to start. They usually have a wide range of light novels available. You can search for 'leviathan of covalent light novel' on their search bars. Also, some specialized Japanese or Asian literature websites might carry it as well.
I'm not entirely sure as there could be many novels with 'leviathan' in the title. It might be about a huge and powerful creature like a leviathan which could be central to the plot, perhaps in a fantasy or adventure setting.
I don't know specifically which 'leviathan novel' you're referring to. There could be many novels with that name or a related title, each having different authors.
I'm not sure about specific translations offhand. But you could check online book platforms like Amazon or Goodreads, where users often review different translations and you might find a well - regarded one.