Mikami Satoru, a businessman, is stabbed by a criminal on the street and killed. When he regains consciousness in the darkness, he finds that he's been reincarnated as a slime! With nothing better to do, he spends his time devouring all the rare herbs and precious ores he comes across. As he does, he encounters the Storm Dragon Veldora, who was sealed in this cave 300 years ago by a hero's "Unlimited Imprisonment" skill. He's frightened at first, but as they talk, he becomes friends with the long-isolated Veldora.
Slimes are normally low-ranked 
monsters that don't think,
الهلام هو في العادة وحش متدنّي
،المرتبة ولا يفكر
Eigentlich sind Schleime
niedere Monster, die nicht denken.
Los slimes son monstruos de bajo rango
que no piensan,
Los slimes son monstruos de bajo rango
que no piensan,
Les slimes sont en général
des créatures sans âme.
Gli slime sono di base creature inferiori, 
non dotate di pensiero.
Slimes normalmente são monstros
de baixo nível, que não pensam,
Обычная слизь —
слабый монстр, неспособный мыслить,