Evolution of Slime to Peak

Slime also known as the weakest monster in any novel, game, or manga. The beast that every beginner face in his life in any game.
Ren, a student suddenly founds himself in a dungeon full of slimes.
No system, nothing. He didn't even know where he was, nor did he knows what to do.
Just a thing in his mind was "Eat" Eat, and you get the power. Eat, you get the skill. Eat, and you will evolve.
From slime to Super Slime, Mega Slime, Chief Slime, King Sline. Evolve to the peak.
"I will do anything to survive!"