One common theme is self - discovery. The reincarnated OC often has to figure out who they are in this new world and how their previous life and new circumstances interact. Another is the struggle for power. Since the MHA world is centered around quirks, the OC usually has to find a way to gain power or use their unique skills.
One common theme is identity struggle. Since the OC is now in Shoto's body, they have to figure out how to balance their original self with the new identity. Another theme is power exploration. They have to learn to use Shoto's quirk effectively. And also, family relationships are often explored as Shoto has a complex family situation in MHA.
Sure. 'Reincarnated as a Quirkless Hero in My Hero Academia' is a great one. It has an interesting plot where the OC, who is reincarnated, has to find their way in the MHA world without a quirk at first. Another one is 'My Reincarnated Life in MHA'. It focuses on the character development of the reincarnated OC as they interact with the well - known MHA characters.
Well, there's 'My Reincarnation as Shoto' which has an interesting take on the concept. The story focuses on how the OC's memories and personality change the way Shoto approaches relationships with his family and friends in the MHA universe. There are also some fanfics that are less well - known but still great, like 'Reincarnated into Shoto's World' where the OC - turned - Shoto has to deal with the villains in a unique way based on their previous life experiences.
Among the main characters besides Rimuru are Gobta. He is a goblin who is rather comical at times but also shows growth throughout the story. Then there is Diablo, a very powerful demon who becomes Rimuru's subordinate. His power and knowledge contribute to Rimuru's rise in the world of the novel. There are also other characters like Milim, a dragonoid with a child - like personality who has her own impact on the overall plot.
Milim Nava is an interesting character. She is a powerful Demon Lord with a child - like personality. She often gets involved in Rimuru's adventures in unexpected ways. Then there's Shion. She is a hobgoblin with great loyalty to Rimuru. Her over - the - top reactions and her growth in strength and character add a lot of fun to the story.
There's Veldora. He's a powerful dragon sealed within Rimuru's stomach at first. His presence has a great impact on Rimuru's growth and the story. Then there's Shion, a strong ogre who becomes one of Rimuru's loyal followers. She's known for her combat abilities. Also, Benimaru, a kijin, is an important character. He plays a key role in the development of Tempest.
Rimuru is very strong in the manga. He starts off with some unique abilities and keeps getting stronger through different events and encounters. His strength is not just physical but also in his strategic thinking and leadership skills.
One fanfic I remember has the OC reincarnated as Izuku with the power to manipulate time on a small scale. It's really cool because he uses this power to analyze battles and opponents' moves more effectively. He can slow down time for a few seconds during combat to gain an advantage, which is a very unique take on Izuku's character development.