Ryunosuke Akutagawa Personality: A Ruthless and Ambitious Antihero

Updated: Monday, December 22, 2025

MBTI

ISFP

Enneagram

4w3

Alignment

Lawful Evil

Ryunosuke Akutagawa is a member of the Port Mafia, a criminal organization that operates in Yokohama. He is one of the main antagonists of the first season of Bungou Stray Dogs, and later becomes an ally of the Armed Detective Agency, a group of supernatural detectives that often clash with the Port Mafia. He possesses a powerful ability called Rashoumon, which allows him to manipulate his coat into various forms of attack and defense.

Ryunosuke Akutagawa's Personality

Ryunosuke Akutagawa is a ruthless and ambitious antihero, who will stop at nothing to achieve his goals and prove his worth. He is cold, arrogant, violent, and merciless, often killing his enemies without hesitation or remorse. He has a strong sense of pride and honor, and despises weakness and incompetence. He is also loyal to the Port Mafia and its leader, Mori Ougai, who saved him from a life of poverty and misery.

Akutagawa’s personality is largely shaped by his harsh upbringing and his relationship with Osamu Dazai, his former mentor and partner in the Port Mafia. Akutagawa was born in the slums of Yokohama, where he and his younger sister, Gin, had to struggle for survival. He was often bullied and abused by other children, and suffered from a chronic illness that made him cough up blood. He was eventually found by Dazai, who took him under his wing and trained him to become a ruthless assassin. Akutagawa admired Dazai and saw him as his only source of validation and approval. He developed a strong desire to impress Dazai and earn his praise, which he never received.

However, Dazai eventually left the Port Mafia and joined the Armed Detective Agency, leaving Akutagawa behind. This caused Akutagawa to feel betrayed and abandoned, and to develop a deep hatred and resentment towards Dazai. He also became obsessed with finding and defeating Dazai, believing that this would prove his superiority and worthiness. He also developed a rivalry with Atsushi Nakajima, a member of the Armed Detective Agency and Dazai’s new protégé, whom he saw as a threat and an obstacle to his goal.

Akutagawa’s personality undergoes some changes throughout the series, as he interacts with different characters and faces various challenges. He gradually learns to respect and cooperate with Atsushi, after realizing that they have similar backgrounds and goals. He also develops a friendship with Kyoka Izumi, a former assassin who joined the Armed Detective Agency, and helps her to escape from the Port Mafia. He also shows some signs of compassion and empathy, such as when he saves a group of orphans from a fire, or when he comforts his sister after a traumatic experience. He also begins to question his loyalty to the Port Mafia, and his dependence on Dazai’s approval. He starts to seek his own path and identity, and to find his own reasons to live.

MBTI Analysis

Akutagawa’s MBTI personality type is ISFP, which stands for Introverted, Sensing, Feeling, and Perceiving. ISFPs are known as the Adventurers, who are creative, spontaneous, and independent. They live in the present moment, and enjoy exploring new experiences and sensations. They are also sensitive, loyal, and compassionate, and value harmony and personal freedom.

Some of the traits and behaviors of Akutagawa that fit into the ISFP type are:

He is introverted and reserved, preferring to work alone or with a few trusted people. He does not like to socialize or express his emotions, and often keeps his thoughts to himself.
He is sensing and realistic, relying on his senses and instincts to navigate the world. He is adept at using his ability, Rashoumon, which enhances his physical abilities and perception. He is also pragmatic and adaptable, dealing with problems as they arise.
He is feeling and empathetic, making decisions based on his personal values and feelings. He is loyal and devoted to the Port Mafia and Dazai, and cares deeply for his sister, Gin. He is also passionate and expressive, showing his emotions through his actions and words.
He is perceiving and flexible, preferring to keep his options open and avoid strict rules and plans. He is spontaneous and adventurous, enjoying the thrill of combat and challenge. He is also curious and open-minded, willing to learn from his experiences and change his views.

Enneagram Insights

Akutagawa’s Enneagram type is 4w3, which means he is a type Four with a strong Three wing. Type Fours are known as the Individualists, who are creative, expressive, and unique. They seek to find their identity and meaning in life, and often feel different and misunderstood. They are also emotional, sensitive, and introspective, and value authenticity and beauty. Type Threes are known as the Achievers, who are ambitious, confident, and competent. They seek to be successful and admired, and often adapt to their environment and audience. They are also goal-oriented, efficient, and charismatic, and value performance and image.

Some of the traits and behaviors of Akutagawa that fit into the 4w3 type are:

He is a Four because he is creative and expressive, using his ability, Rashoumon, in innovative and artistic ways. He also seeks to find his identity and purpose in life, and often feels different and alienated from others. He is also emotional and sensitive, experiencing intense feelings of anger, sadness, and envy. He values authenticity and beauty, and strives to be true to himself and his ideals.
He is a Three because he is ambitious and confident, pursuing his goals of becoming the strongest ability user and the leader of the Port Mafia. He also seeks to be successful and admired, especially by Dazai, and often adapts to his environment and audience. He is also goal-oriented and efficient, completing his missions and tasks with skill and speed. He values performance and image, and strives to impress others and maintain his reputation.

Moral and Ethical Alignment

Akutagawa’s moral and ethical alignment is Lawful Evil, which means he follows a code of conduct or a set of rules, but does not care about the welfare or rights of others. He is willing to use any means necessary to achieve his goals, even if they involve harming or killing innocent people. He is also loyal to his authority or organization, and expects others to obey him or face his wrath.

Some of the traits and behaviors of Akutagawa that fit into the Lawful Evil alignment are:

He follows the code of conduct and the rules of the Port Mafia, a criminal organization that operates in Yokohama. He obeys the orders of his superiors, and executes his missions and tasks without hesitation. He also respects the hierarchy and the structure of the Port Mafia, and expects others to do the same.
He does not care about the welfare or the rights of others, especially those who are weak or oppose him. He is willing to use any means necessary to achieve his goals, even if they involve harming or killing innocent people. He is also ruthless and cruel, and enjoys inflicting pain and suffering on his enemies.
He is loyal to his authority or organization, and does not tolerate any betrayal or disobedience. He is devoted to the Port Mafia and Dazai, and will not hesitate to kill anyone who threatens or betrays them. He also expects others to obey him or face his wrath, and will not accept any challenge or insult to his authority or reputation.

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