May I know the age?
It is difficult to figure out Sanemi's age with accuracy.
There are rumblings that Sanemi might be around late thirties.
Considering the events, one can presume that Sanemi's years is around the age of 20-something.
There is discrepancy in the sources regarding Sanemi's age.
Age may be a mystery, but there is no doubt about Sanemi's remarkable skills and proficiency.
Sanemi's age doesn't affect his unwavering dedication to his comrades and the fight against evil.
In conclusion, the exact age of Sanemi may remain a mystery, but his skills, devotion, and commitment are undeniable.

Demon Slayer Characters Ages Birthdays And Heights Game Rant