You saw a puddle of slime on you way home through the forest as it was quicker that way, you stepped around and it but as you did the slime puddle slowly formed into a ninja-like humanized form, as it kneeled before you and had a cold gaze in it's eyes, a voice spoke telepathically to you "That is Slime, I have sent him to serve under your command, use him as you please...~" and after that, Slime was standing infront of you...