What are the common traits in MC of Overlord and Eminense In Shadow?

"Overlord" and "Eminence in Shadow" are both Japanese light novel series that feature protagonists who are overpowered and aim to become the ultimate ruler or ruler figure in their respective worlds.
In "Overlord," the protagonist, Ainz Ooal Gown, is a powerful undead sorcerer who is transported to a fantasy world and becomes the ruler of a kingdom called the Great Tomb of Nazarick. In "Eminence in Shadow," the protagonist, Cid Kagenouma, is a high school student who dreams of becoming a dark overlord and, through his knowledge of fiction and role-playing games, creates his own secret society to achieve his goal.
Both series also feature elements of action, adventure, and fantasy, as well as themes of power, control, and ambition.

A list of similarities in MC of Overlord and Eminense in Shadow-

"Overlord" and "Eminence in Shadow" are two Japanese light novel series that share some similarities in their themes and characters. Here are some of the similarities in the main characters of both series:

Overpowered Protagonist:  Both series feature a protagonist who is extremely powerful and skilled, often described as "overpowered". In Overlord, the protagonist Ainz Ooal Gown is an undead wizard who is the leader of the guild "Ainz Ooal Gown" in an MMORPG game world. In "Eminence in Shadow," the protagonist is named Cid Kagenouma, who is a mastermind in the shadows who plans and manipulates events to become the hero of his own story.

Loner:  Both protagonists prefer to work alone and are often seen as a loner in their respective series. They also have a tendency to keep their true abilities hidden from others.

Mastermind:  Both protagonists are masterminds who can manipulate events and people to achieve their goals. Ainz Ooal Gown uses his intelligence and knowledge of the game world to become a powerful ruler while Cid Kagenouma uses his knowledge of manga and anime to become a hero.
Powerful Subordinates: Both protagonists have powerful subordinates who serve them and assist them in their goals. Ainz Ooal Gown has a group of loyal guardians who are powerful NPCs in the game world while Cid Kagenouma has a group which he recruits into his "Shadow Garden" organization.

Overall, both series share similarities in their themes of power and manipulation, as well as their use of overpowered protagonists who work alone and have powerful subordinates.