Series & First Appearance
Benimaru is a character from the anime and light novel series "That Time I Got Reincarnated as a Slime," originally created by Fuse. He first appears in the manga in Chapter 3 and in the anime adaptation in Episode 1. The series has been animated by studio 8bit.
Profile at a Glance
Benimaru is a Fair Oni with a height of 180 cm. He serves as the Minister of Defense for the Jura-Tempest Federation and is also a key military leader during wartime. He holds the title of Oni King and is counted among the Twelve Guardian Lords as well as the Big Four, making him one of Rimuru Tempest’s three most powerful subordinates, alongside Diablo and Zegion. His unique skill, Great General, and powerful combat techniques showcase his formidable nature.
Personality & Motivations
Benimaru exhibits a strong, confident, and sometimes brash personality. He has a keen sense of duty towards Rimuru Tempest and the welfare of their community, often taking on a protective role. Despite his ferocity in battle, he possesses a deep loyalty and camaraderie with his comrades, specifically valuing mutual respect. Notably, he has a competitive streak and often seeks to prove himself, trying to enhance his skills further. Benimaru has been seen expressing a desire to ensure that the oni and their culture are respected and preserved in the new world.
Abilities / Powers
Benimaru boasts a diverse array of abilities. His Unique Skill – Great General enhances his leadership in battle, allowing him to command troops effectively. He also has skills like Ex – Flame Ruler, giving him mastery over fire magic, and Demon Flame Transformation, which elevates his combat capabilities by allowing him to harness and control flames in various forms.
His other skills include:
- Black Flame: A strong and destructive flame magic.
- Multiple Barrier: Enabling him to create multiple barriers for protection.
- Spatial Transfer: Allowing him to teleport short distances.
Additionally, his daily skills include Magic Perception, Heat Detection, Herculean Strength, and Dignity. His resistances include nullification against various physical damage, pain, and status changes, making him a formidable opponent in battle.
Major Story Arcs & Growth
Throughout the series, Benimaru experiences significant growth. In the initial arcs, he is introduced as a fierce warrior who is pivotal in building the new society for the inhabitants of the Jura Forest. His loyalty is tested during conflicts with other nations and diverse magical creatures. Key turning points include:
- The Battle Against the Orcs: Here, he showcases his abilities as a leader and a warrior, demonstrating his capabilities in strategizing and combat.
- The Ongoing War Against the Kingdom of Falmuth: This arc highlights Benimaru’s tactical genius and ability to adapt in war.
His personal growth is marked by his evolving understanding of leadership and camaraderie, ultimately leading him to embrace a leadership role not just in battle but also in improving community relations among diverse races.
Notable Relationships
Benimaru’s relationship with Rimuru Tempest is central to his character. He views Rimuru not only as a leader but also as a close friend and ally, often fighting alongside him. His interactions with other members of the Twelve Guardian Lords, particularly Shuna (his sister) and his mentor figure, emphasize his sense of loyalty and responsibility. Moreover, he maintains a competitive rapport with other strong subordinates, often engaging in friendly rivalries to improve himself.
Iconic Moments & Quotes
One of Benimaru’s notable moments occurs in Episode 15 during the clash against an overwhelming force where he declares, “I will protect my home and my people at all costs.” This line encapsulates his fierce dedication to Rimuru and the Jura-Tempest Federation.
Another impactful scene takes place during a pivotal battle in Season 2, where he demonstrates his evolution as a leader by orchestrating a strategic maneuver that turns the tide against their foes, highlighting his growth in responsibility and battle prowess.
Trivia & Behind-the-Scenes
Benimaru has garnered a substantial fanbase, evidenced by having over 1,159 member favorites. He is voiced by Miyake Kenta in the Japanese version, while he is dubbed by Ryan Bartley in the English version. His unique design is reflective of traditional oni folklore, meshed with a formidable warrior aesthetic, aligning with the series’ themes of community and strength amidst adversity. His popularity is further confirmed by his rankings in various character polls, where he often stands among the top favorites from the series.
In pop culture, Benimaru stands as a symbol of strength and loyalty, becoming an iconic figure representative of the deeper themes within "That Time I Got Reincarnated as a Slime," such as unity and adaptation in a fantastical world.
This character spotlight serves as a detailed guide to understanding Benimaru’s multifaceted nature, making him a beloved figure in the realm of anime.







