"I Am Overlord, also known as Ryoma Sakamoto, is the protagonist of the manga series ""I Am Overlord."" He is a high-school student who gets transported to a fantasy world along with his class, where they are each given a unique ability. However, Ryoma's ability is unlike the others.

I Am Overlord possesses the power to manipulate and control any living creature, known as ""mind control."" This power is incredibly useful, but also dangerous, as it can easily turn any creature into a weapon if used improperly. Ryoma is also incredibly skilled in hand-to-hand combat and swordsmanship, making him a formidable opponent in battle.

Despite his power and strength, I Am Overlord is often seen as stoic and reserved, keeping to himself and rarely interacting with others. He is also very intelligent and analytical, often using his knowledge and wit to outsmart his enemies.

Throughout the series, I Am Overlord becomes embroiled in a conflict between various factions, each with their own desires and agendas. He must navigate this dangerous world and use his abilities to protect himself and those he cares about, all while trying to uncover the mysteries of this new world he finds himself in.

Despite his powerful abilities, I Am Overlord also has weaknesses and flaws. His mind control power takes a toll on his mental state, sometimes causing him to lose control or act in ways that he later regrets. He is also haunted by his past and struggles with guilt over the actions he took before coming to this fantasy world.

Overall, I Am Overlord is a fascinating and complex character, with a unique power and a formidable presence. His journey through the world of ""I Am Overlord"" is filled with excitement, danger, and intrigue, and he remains a central figure throughout the series."