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.
You must not fear me when you 
have the ability to see me,
يجب ألا تخشاني عندما تمتلك
،القدرة على رؤيتي
No debes temerme cuando puedas verme
No debes temerme cuando puedas verme
Une fois que tu auras cette faculté,
n’aie pas peur de moi.
Una volta acquistata la vista, 
non dovrai avere paura di me.
Mesmo quando me ver,
não tenha medo de mim,
Не пугайся, когда узреешь моё обличье,