Survival in a new and dangerous world is also a theme. The mc, being overpowered, has to use their power to survive and thrive. In 'Log Horizon', the players are stuck in a game world and the main characters, with their unique abilities, strive to not only survive but also make the best of the situation.
Another one is 'The Beginning After The End'. The mc has memories from his past life and uses his knowledge and unique abilities to become extremely powerful in a new world.
Rebuilding society can also be a theme. Even though the world is in chaos, the 'op mc' may have the ability and the will to start building something new. There is often a sense of adventure as well. The main character goes on quests, discovers new places, and uncovers secrets in the apocalyptic landscape. And there's the theme of morality. In a world where the rules have changed, the 'op mc' has to decide what is right and wrong.
Power progression is a common theme. The OP main character usually starts from a certain level of strength and becomes even more powerful over time. Another is the development of relationships with multiple female characters. They often start with misunderstandings or the main character helping the females in some way, and then relationships grow.
The theme of leadership also appears frequently. In 'The Rising of the Shield Hero', Naofumi has to lead his small group of allies against much larger forces. His overpowered abilities give him the means to do so, but he also has to develop leadership skills. Also, there is often a theme of justice. These overpowered characters usually end up fighting for what they believe is right. They use their power to protect the weak or to right the wrongs in the world they inhabit, whether it's a virtual world like in 'Sword Art Online' or a more traditional fantasy world like in other novels.
The main themes in 'mc is ruthless light novel' might include self - preservation. Given that the MC is ruthless, they are likely to prioritize their own safety and well - being above others. Another theme could be moral ambiguity. Their ruthless nature might make them cross ethical boundaries, which could lead to exploring questions about right and wrong in the context of the story. There could also be themes related to competition, as a ruthless MC would be likely to engage in cut - throat competition with other characters to achieve their goals.
One of the common themes is adventure. Many fanfictions put 707 and MC in various adventurous situations. They might be exploring new digital worlds or going on real - world quests together. Also, the theme of self - discovery is present. As MC interacts with 707, they both learn more about themselves. It's like they are mirrors to each other in some ways, and fanfictions love to explore that aspect. There's also the theme of protection. 707 is often portrayed as someone who wants to protect MC, and this is a recurring element in many of these fanfictions.
One common feature is the rapid power growth of the main character. They often start from a low - level state and quickly gain abilities that make them stand out. For example, in 'Overlord', the main character starts as a powerful being in a game world and his power just keeps expanding in the new world he gets transported to.
Another common theme is the fish - out - of - water situation. The MC is transported to a new world, so they have to adapt to new cultures, magic systems, and social structures. In 'Konosuba', Kazuma has to deal with all the crazy things in the isekai world while trying to make the best of his situation with his OP party members. And they often have a goal, like saving the new world or finding a way back home, which drives the story forward.
One of the main themes is competition. The story is set in a highly competitive school environment where students constantly strive to outdo each other. Another theme is intelligence and strategy. The main character has to use his wits to navigate the complex social and academic situations. Also, there is a theme of social hierarchy as the school has a strict class system.
A common theme is friendship. The dragon and the Minecraft character form a bond and rely on each other. Another is adventure, as they explore the Minecraft world together.