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.
Sure. 'Overlord' is a great isekai novel with an OP main character. Momonga, the protagonist, gets transported to another world and has incredible power from the start. Another one is 'That Time I Got Reincarnated as a Slime'. Rimuru starts off as a slime but quickly becomes very powerful in the new world.
The harem aspect means there are multiple female characters who are attracted to the MC. In these manga, the relationships can range from simple admiration to deeper emotional bonds. The female characters often have diverse personalities and abilities, adding to the complexity of the story. For instance, in 'Death March to the Parallel World Rhapsody', the harem members include a princess, an elf, etc.
Typically, they are often very powerful from the get - go. For example, in 'Overlord', the main character has a vast array of powerful spells and an army at his disposal right after being transported to the new world. This immediate power gives them an edge in the new and often dangerous isekai settings.
Sure. 'Overlord' is a great one. The main character is extremely overpowered as he gets transported to a new world. He has incredible strength and abilities from the start which makes his adventures in the isekai world very interesting.
There's also 'Death March to the Parallel World Rhapsody'. The MC Ichirou Suzuki is overpowered and gradually builds up a harem of various characters in the isekai setting. The story has a mix of adventure, comedy and some harem elements.
One great anime is 'Sword Art Online'. The main character, Kirito, is extremely overpowered (OP). He is highly skilled in the virtual reality world of SAO. In the series, he also has a love story with Asuna. Their relationship develops as they face various challenges together in the dangerous game world.
Well, one common theme is the exploration of the isekai world itself. The OP characters often go on adventures, discover new places, and uncover secrets. Another is the concept of relationships. They form alliances, make friends, and sometimes enemies in the new world, and these relationships are shaped by their OP status. Also, the theme of challenging the status quo is present. Their OP abilities give them the power to change things in the world they are transported to, whether it's the political system or the way magic is used.
One great OP MC web novel is 'Solo Leveling'. The main character starts off as a weak hunter but gradually becomes extremely powerful. His growth and the unique monster - hunting system in the story are really captivating.