Sanemi's estimated duration of existence interests me, what about you?
It is difficult to figure out Sanemi's years with accuracy.
Some believe he is around 30s.
It can be inferred from the story that Sanemi might be in his 20s.
It is unclear and debated among sources about Sanemi's precise age.
However, one thing is certain - Sanemi is an experienced and skilled individual.
Sanemi's commitment to his purpose remains steadfast, irrespective of his age.
In conclusion, the exact age of Sanemi may remain a mystery, but his skills, devotion, and commitment are undeniable.

Sanemi Demon Slayer Skills Battles Fan Arts and