Since I don't know the details of this novel, I can't say for sure who the main characters are. But it's likely that there is a character with assassination skills as one of the main characters.
Well, 'ansatsu skill de isekai saikyou novel' could potentially tell a tale where the protagonist uses their assassination abilities to navigate and dominate in an isekai setting. Maybe they have to fight monsters or other powerful beings using their unique skills. They could start from being an underdog and gradually rise to be the most powerful entity in that new world.
The 'isekai de saikyou maou novel' might tell the story of someone who finds themselves in a strange, otherworldly place ('isekai'). As the'saikyou maou' or the strongest demon king, they would face numerous threats and opportunities. It could be that the world they enter is in chaos, and they are seen as either a savior or a feared tyrant depending on their actions. There could be a backstory about how they got their powers, perhaps a mysterious encounter or a hidden heritage that is gradually revealed as the story progresses. They may also form alliances or make enemies among the various factions in this new world.
This 'isekai de saikyou maou no kodomo novel' could potentially be a story full of fantasy elements. The 'isekai' setting gives the opportunity for a unique world - building. With the main character being the child of the strongest demon king, there could be a lot of political intrigue. Maybe other characters are trying to use or manipulate the child because of their lineage. Or perhaps the child is trying to break free from the expectations set by their father or mother, the demon king, and wants to create their own identity in this strange new world they've found themselves in.
Often, there is a big contrast between the skills from the original world and the challenges in the isekai world. For example, in 'Overlord', the protagonist's gaming skills are put to the test in a much more complex and unpredictable real - like fantasy world. The skills might seem overpowered at first but as the story progresses, new challenges emerge that require creative use of those skills.
Another aspect is the growth of the character through the use of these skills. The protagonist starts with certain skills and as the story progresses, they may upgrade or combine their skills. This not only makes the character stronger but also shows their development. Also, the skills can sometimes be a source of mystery, like in some novels where the origin or the true potential of a skill is gradually revealed as the story unfolds, adding an element of intrigue to the plot.
Well, 'isekai de skill web novel' might be a story that focuses on a protagonist who enters an isekai world and then discovers or develops unique skills within that world. It could involve all kinds of adventures, battles, and character growth based on those skills. For example, the character might use their skills to fight monsters, make friends with strange creatures, or even change the world they've been transported to in some way.
I'm not entirely sure as there are many novels with this kind of theme. Generally, in 'isekai' (another world) type novels with cheat skills, the protagonist is often transported to a different world and has some special ability or skill that gives them an advantage, like super strength or magic powers, which they use to navigate this new world.
You can try looking for it in local bookstores. They might have a section dedicated to light novels or Japanese - inspired novels where it could be available.