That Time I Got Reincarnated as a Slime

A nice guy, 37 years old, was suddenly stabbed to death by a random attacker on the street. When he regained consciousness and checked his body, he had become a slime! What? ...What? Why did I become a slime!!! Despite saying such things, he enjoys his daily slime life cheerfully. His abilities increase, and his subordinates increase. Eventually, should I aim to become the Demon King? This is an otherworldly slime life story of a somewhat off-kilter, naturally airheaded protagonist. ※ Main story is complete. Bonus chapters may be considered unnecessary by some.