Dōgen

Dōgen is the overall main antagonist of the Senran Kagura franchise. He is the investor in Hebijo Academy, but in secret, Dōgen is hell-bent on raining terror across all of Japan. He has the grounding of a shinobi warrior and has mastered the art of manipulation.

Appearance
Dogen is a tall, sculpted man who's muscular body is apparent even when fully-clothed. He wears formal attire consisting of a red coat with black furred trimming, waist-high pants of the same color, a dress shirt, and a blue and green neckerchief. He is a blonde and bearded man, and has a long scar going down his right eye.

In the anime, his hair is black and he lacks any facial hair. Also, he dons a traditional suit and tie.

Personality
Dōgen is extremely greedy, narcissistic and cruel. He is willing to sacrifice Hebijo's Elite class and put the entirety of the student body in peril as means for resurrecting Orochi. Dogen's goal to have the yōma over his control continues into both Senran Kagura: Deep Crimson and Senran Kagura: Shinovi Versus. Initially, he only wanted to conjure yōma so that he could sell them as weapons, but his admiration for their power made him want to outright control them.

Dōgen is shown to be very persistent and conniving. He is defeated numerous times by Homura and the others, but manages to survive until the final climax, wherein his ultimate goal is finally achieved.

Dōgen prefers the quick and easy route when it comes to gaining power. This was made clear when he eats a yōma to power himself up, or when he used puppetry on himself to unlock his inner power rather than training to reach that point like a proper shinobi would. Overall, Dogen is also highly sadistic and egotistical as he likes to cause suffering to other people and cares for absolutely no one but himself.

Trivia

 * Dōgen's name (道元) can be translated as "Zen Monk", but can also be roughly translated as "Teachings of Origins".