Mikami Satoru used to be an average 37-year-old Japanese, with a peaceful life, except for the fact that he did not have a girlfriend. One sudden day, he is stabbed in the street, and he begins to hear a voice (The Voice of the World), and in this way, he receives the necessary skills to cross between worlds, reincarnating in an alternate world, in the form of the monster more weak, “a Slime”.

That Slime, would meet Veldora, the Storm Dragon, who later became his best friend, and was in charge of naming the slime as “Rimuru”, and both decided to share the surname “Tempest”. Various events transpired, and Rimuru became the leader of the monster country “Tempest”, and became one of the eight Demon Lords.

Rimuru is a boy with long, bluish hair, with a slightly pale complexion while his eyes are bright yellow, he is somewhat short and has a thin complexion, his way of combing his hair is basically to pass his comb twice to adjust the position a little. hair and be ready which indicates that it is somewhat neglected. Rimuru is a boy who is used to looking relaxed and friendly, he always smiles although it is very difficult to know when it is a true smile and when not, despite this with people he trusts it is more like it really is being sarcastic or somewhat childish, he hates being invaded or touched by his living space