I’m not fully sure what TSB refers to here. If you mean The Strongest Battlegrounds , the search results I found only show people discussing that it has “too many players” and that JJS has fewer, but they don’t give a reliable exact count of JJK characters/people in TSB.

Best read

From the discussion I found, the safest answer is: there isn’t a clearly verified exact number in the sources I checked.

What the discussion suggests

  • One forum post says TSB has “way too many players” and mentions it “should have around 30K at most,” but that’s an opinion, not an official count.
  • Another thread asks why TSB has a higher player count than JJS, which suggests people are comparing player counts rather than characters.

If you meant something else

  • JJK characters in TSB : I’d need the exact roster or a current list to count them accurately.
  • Player count in TSB : the sources I found do not provide a dependable live number.

SORRY, FAILED