How young stands Sanemi?
Sanemi's age are fairly unknown.
There are claims that Sanemi could be in his late thirties.
Considering the events, one can assume that Sanemi's age is around the age of 20-something.
While some sources claim that Sanemi is in his late twenties.
Regardless of his specific age, Sanemi is widely recognized for his remarkable talents and capabilities.
Sanemi's age doesn't hinder his unwavering determination to protect others.
In summary, although the specific age of Sanemi may be uncertain, his remarkable abilities, unwavering devotion, and commitment shine brightly.

Demon Slayer Every Character's Age Height Birthday and Powers