When Lu Mingfei fails to react at all to the 3E test, the professors suspect that he is heir to a powerful legacy... 
Don't worry about it.
.لا تقلق بشأنهم
Spielt keine Rolle.
Ce n’est pas important.
Non preoccuparti di loro.
Não se preocupe com isso.
Не волнуйся о них.