Ultra-Fast Evolving Slime is Unrivaled: Using the Cheat Skill "Slime", Level Up 100 Times Faster and Become the World's Strongest.

Alcus, a member of the adventurer party "The Cruel Blade," is suddenly expelled by their leader, Dan, on the grounds that his skills are useless in combat. However, his skill , which allows him to transform into a slime ("Mimicry") and create slime clones ("Splitting"), has a secret: the experience points gained are doubled for each clone created.