Rimuru Tempest Personality: A Kind-hearted and Quirky Leader

Updated: Monday, December 22, 2025

MBTI

ENTP

Enneagram

7w6

Alignment

Lawful Good

Rimuru Tempest is the main protagonist of the anime That Time I Got Reincarnated As A Slime and the reincarnation of Satoru Mikami, a 37-year-old human from Japan. He is the founder and king of the Jura Tempest Federation, a nation of monsters and other races that coexist peacefully.

Rimuru Tempest's Personality

Rimuru is a kind-hearted, quirky, and laid-back person who values friendship and peace. He is compassionate, generous, loyal, and respectful to others, regardless of their race or status. He is also curious, adventurous, and eager to learn new things. He has a sense of humor and often makes jokes or puns, sometimes breaking the fourth wall. He is not easily angered or offended, but he can be serious and determined when the situation calls for it.

Rimuru's personality is influenced by his previous life as Satoru Mikami, a hardworking and diligent salaryman who had a normal and boring life. He was not very sociable and had few friends, but he was loyal and helpful to those he cared about. He was also a fan of manga and anime, especially fantasy and isekai genres. He died after being stabbed by a robber and was reincarnated as a slime in a fantasy world, where he met Veldora, a powerful dragon who was sealed in a cave.

Rimuru's personality changed after his reincarnation, as he gained a new perspective on life and a new body with extraordinary abilities. He became more cheerful, optimistic, and adventurous, as he explored the world and encountered various beings and events. He also became more confident, assertive, and charismatic, as he gained followers and allies who respected and admired him. He developed a strong sense of justice and responsibility, as he protected and guided his people and friends. He also became more ambitious and greedy, as he sought to create a world where everyone can live happily and comfortably.

Rimuru's personality was further affected by his evolution into a demon lord, which was triggered by his grief and rage after his friends and citizens were killed by the Falmuth Kingdom and the Church. He decided to sacrifice the souls of the enemy soldiers to resurrect his fallen comrades, and in the process, he awakened as a true demon lord. He gained immense power and authority, as well as a new partner, Ciel, an ultimate skill that acts as his personal assistant and adviser. He also gained a more mature and composed demeanor, as well as a more ruthless and pragmatic side, as he was willing to kill or manipulate his enemies without hesitation or remorse.

Rimuru's personality reached its peak after his ascension into an ultimate slime, which was the result of his fusion with Veldora. He became the first and only being to surpass the True Dragons in power and status, as well as the leader of the Twelve Guardian Lords, a group of powerful individuals who serve under him. He also became more relaxed and playful, as he enjoyed his life with his friends and family. He also became more benevolent and magnanimous, as he sought to maintain the balance and harmony of the world and help those in need.

Relationships

Veldora Tempest: Rimuru's first friend and adoptive brother. They met when Rimuru was reincarnated as a slime and found Veldora sealed in a cave. They formed a bond of friendship and respect, and Rimuru named Veldora as his family. They also shared their knowledge and interests, such as manga and anime. Rimuru promised to free Veldora from his seal, and after many trials and tribulations, he succeeded. They later fused into one being, becoming the ultimate slime. They have a close and playful relationship, often teasing and joking with each other. They also support and protect each other, and share a common vision of creating a peaceful and prosperous world.
Milim Nava: Rimuru's niece and best friend. She is one of the oldest and strongest demon lords, as well as the daughter of the True Dragon Veldanava and the human Lucia. She met Rimuru when she visited his nation out of curiosity and boredom. She was impressed by his power and personality, and decided to become his friend and ally. She also recognized him as her uncle, since he is Veldora's brother. They have a fun and lively relationship, often hanging out and having adventures together. They also trust and care for each other, and help each other in times of need. They sometimes have disagreements or conflicts, but they always make up and respect each other.
Shizue Izawa: Rimuru's predecessor and mentor. She was a Japanese girl who was summoned to the fantasy world by the demon lord Leon Cromwell and fused with the fire spirit Ifrit. She became a hero and adventurer, known as Shizu, who fought against evil and injustice. She met Rimuru when she was on her deathbed, and asked him to inherit her will and name. Rimuru agreed, and absorbed her into his body, gaining her memories and appearance. He also named himself after her, as a tribute and a promise. He respects and admires her, and considers her as his teacher and role model. He also seeks to fulfill her wishes, such as finding Leon and freeing the other summoned children.
Benimaru: Rimuru's right-hand man and loyal subordinate. He is the leader of the ogres, who later evolved into kijin after being named by Rimuru. He met Rimuru when he and his surviving clan members sought revenge against the orc lord who destroyed their village. Rimuru helped them defeat the orc lord, and offered them to join his nation. Benimaru accepted, and became Rimuru's chief of staff and commander of the army. He is grateful and devoted to Rimuru, and follows his orders and advice without question. He also admires and respects Rimuru, and acknowledges him as his king and friend. He is also protective and supportive of Rimuru, and often acts as his spokesperson or representative.
Shion: Rimuru's secretary and personal chef. She is one of the ogres, who later evolved into kijin after being named by Rimuru. She met Rimuru when he helped her and her clan defeat the orc lord. She joined his nation, and became his secretary and cook. She is deeply in love and obsessed with Rimuru, and always tries to get his attention and affection. She is also jealous and possessive of him, and often competes with other girls for his favor. She is loyal and faithful to Rimuru, and would do anything for him. She is also proud and confident of her cooking skills, even though her food is usually terrible and poisonous.

Find out how you match with Rimuru Tempest. Take the