What can I say, the concept of you not being the protagonist is solved perfectly!
I enjoyed the story of the little slime who is incapable of doing anything by himself and needing someone, who can help him as the healer slime can help him too.
The RPG maker is for sure the best way to create a game like this, which gives a lot retro games vibes.
Also the graphics and the music are really simple, as a compliment, that resembles the aspect of this game which is very funny to play.