Su Nanzhi actually had moments when she was leisurely and unoccupied, after all, when living in Jiahu, who can avoid the blade? Naturally, she also needed to disguise her identity, so she learned a skill in advance—voice modulation.
It was not particularly hard for her, although the occasions requiring this skill were few, it was always better to be safe than sorry, as in the situation now.
Perhaps due to her physical constitution, Nanzhi's secondary sexual characteristics were not very pronounced—especially in this racing suit, which was still a bit loose on her.
Generally, most racers are male, and in these informal races, there wasn't a meticulous verification of everyone's identity, coupled with the fact that Su Nanzhi spoke with a young male's voice, so the other party naturally took her for a boy.
No one was suspicious.
They didn't even know her name, just that her code name was 19.
