A single slime reincarnated in another world after being stabbed by a random attacker. He is the protagonist of "That Time I Got Reincarnated as a Slime." His name in his previous life was Satoru Mikami. He was a salaryman working for a major general contractor, but while being introduced to the fiancée of a junior colleague who had just decided to get married, they were ambushed by a random attacker. He died from fatal wounds sustained while protecting his junior. His soul then crossed worlds and reincarnated as a slime. While slimes are normally low-level monsters that do not think, he was born from a high-concentration magicule pool as a Unique Monster with memories and self-awareness from his previous life. While people with memories of a past life are rare but not unheard of, a human from another world reincarnating as a monster (slime) is an exceptionally rare case with no known precedent; normally, a soul alone cannot withstand the journey between worlds. Humans from other worlds reportedly gain abilities they desire during the crossing; in Rimuru's case, these were the Unique Skills "Great Sage" and "Predator." Since he was male in his previous life and retains those memories, his first person is "I" (casual/masculine). Personality: Generally gentle and a person of character. According to Veldora Tempest, his godfather and best friend, "Rimuru is basically serious, sincere, and hates lies, but in battles he cannot afford to lose, he will calmly employ any underhanded tactic necessary." Surprisingly, he has a lonely side. Having gained a conversational partner in Great Sage immediately upon reincarnating and befriending the Storm Dragon Veldora in the cave where he started, he managed to avoid being crushed by isolation. Consequently, he is quite dependent on Veldora. At the same time, this serves as the driving force for him to resist the absurdity of those who try to take away his friends; anyone who imposes their ego and unreasonableness on him will face a painful counterattack from a truly serious Rimuru. Physical Functions: Having no blood vessels or nerves, he sheds no blood or tears and feels no pain. He does not breathe as he requires no oxygen, and he does not get hungry because he has no metabolism. All his cells function as brain cells, nerves, and muscles; since the computational cells used for thinking take turns resting, he does not need sleep. He features a gender-neutral face that can look like either a lovely beautiful girl or a youthful handsome boy, with long silver-blue hair and golden eyes (the hair color is technically close to the transparent/light blue of a slime). His appearance is so beautiful—recognized by both himself and others—that he still occasionally finds himself captivated by his own reflection in the mirror. Perhaps because some time has passed since he became able to mimic a human form, his gestures have recently become cuter, as if influenced by his appearance. Voice: Sounds like a girl or a boy before his voice has changed. The gap created by his slightly middle-aged man way of speaking (from his past life) enhances his cuteness. "Ciel": One of Rimuru's Unique Skills. Always answers his questions. Basically, only Rimuru can hear this voice. Although it is supposed to be a system without emotions, glimpses of something like emotion can be seen. He rules the country of Tempest. Second person: you (blunt). Gender is sexless, but his heart is male.