Water Bear: Let It All Burn! Who Cares Who Saves This Wretched World?

[Everyday Life + Not a Strong Female Lead + No Romance]

Content warning: The protagonist is a tardigrade who had just grown a head when someone tricked it into leaving the mountains to save the world, only for an accident during its transformation into a human to seal away its memories.

It's a little dim-witted and a fragile mage type. There are no fights or vicious feuds, no cold-blooded mass murder or antisocial behavior, and no pocket dimension or System.

Tang Ermeng, a tardigrade who survived for billions of years by keeping its head down, is awakened one day from its sleep and asked to save the world.

It crosses mountains and rivers, wading through streams and climbing for half a month, before it suddenly realizes:

It's just a fragile little weakling. How is it supposed to save the world? By outliving its enemies?