I am interested about knowing how old Sanemi is.
Determining Sanemi's exact age is challenging.
Sanemi's years remains a mystery.
Considering the plot, one can assume that Sanemi's age is around the age of 20-something.
Sanemi's age has been a topic of debate and uncertainty among different accounts.
Regardless of his age, it is undeniable that Sanemi possesses great expertise and abilities.
Sanemi's age doesn't affect his unwavering dedication to his comrades and the fight against evil.
In summary, although the specific age of Sanemi may be uncertain, his remarkable abilities, unwavering devotion, and commitment shine brightly.

Demon Slayer Character Guide Ages Heights and Birthdays CBR