Benimaru Personality: A Proud and Loyal Warrior

Updated: Monday, December 22, 2025

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Chaotic Good

Benimaru is a major supporting character in the anime series That Time I Got Reincarnated as a Slime. He is an oni and loyal follower of Rimuru, the slime who reincarnated from another world and became the leader of a nation of monsters.He is the son of the late ogre chieftain and Shuna's older brother. He is also the Minister of Defense for the Jura Tempest Federation, acting as the Commander-in-Chief for its military during wartime.

Benimaru's Personality

Benimaru is a proud, loyal, brave, and honorable warrior. He values strength, courage, and justice. He is also intelligent, strategic, and decisive. He has a strong sense of duty and responsibility, as well as a deep love for his family and friends.

Benimaru was born as an ogre, a race of powerful and noble warriors who lived in harmony with nature. He was the heir of the ogre tribe, and was trained by his father to become a strong and wise leader. He inherited his father's flame-like hair and horns, as well as his fire manipulation abilities.

Benimaru's life changed when his village was attacked by a group of orcs, who were manipulated by a demon lord. He witnessed his father's death, and swore to avenge him. He led the surviving ogres to fight against the orcs, but was outnumbered and overwhelmed. He was saved by Rimuru, who offered him a new name and a new power. Benimaru accepted, and evolved into a kijin, a higher form of oni.

Benimaru pledged his loyalty to Rimuru, and became one of his most trusted and loyal subordinates. He was impressed by Rimuru's kindness, wisdom, and charisma, as well as his vision of creating a peaceful and prosperous nation of monsters. He respected Rimuru as his master, and followed his orders without question. He also admired Rimuru's strength, and sought to become stronger himself.

Benimaru played a vital role in the development and defense of the Jura Tempest Federation. He helped Rimuru establish diplomatic relations with other nations, such as the dwarves, the lizardmen, and the humans. He also fought against various enemies, such as the orc lord, the Charybdis, the Farmus Kingdom, and the Western Saints Church. He displayed his prowess as a warrior and a leader, commanding the Tempest army with skill and courage.

Benimaru also underwent several changes in his personality and appearance. He became more mature, calm, and confident, as well as more open and friendly. He also gained a divine oni form, which increased his power and gave him a more majestic and elegant look. He also developed romantic feelings for two women, Momiji and Albis, and married them both. He became a father of several children, and a grandfather of many more.

Relationships

Shuna: Benimaru's younger sister and the princess of the ogres. He loves her dearly, and is very protective of her. He supports her role as the Minister of Foreign Affairs, and respects her wisdom and grace. He often teases her about her crush on Rimuru, but also encourages her to pursue her happiness.
Rimuru: Benimaru's master and friend. He is loyal, faithful, and devoted to him. He admires his strength, wisdom, and charisma, and follows his orders without hesitation. He also cares for him as a person, and enjoys spending time with him. He considers him as his benefactor, and is grateful for everything he has done for him and his people.
Hakurou: Benimaru's father-in-law and mentor. He is a legendary swordsman and the former leader of the ogre tribe. He taught Benimaru the way of the sword, and helped him improve his skills. He also gave him his daughter Momiji's hand in marriage, and entrusted him with the future of the ogres. He respects him as a master, and loves him as a father.
Momiji: Benimaru's first wife and Hakurou's daughter. She is a beautiful and skilled kunoichi, who specializes in stealth and assassination. She fell in love with Benimaru when they were young, and confessed to him after he became a kijin. She is loyal, supportive, and affectionate to him. She also gets along well with his second wife Albis, and shares him with her.

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