Wushu Tao
(
https://wushu-tao.com
)
Writing sheet of the characters :
bù kè qì 不客气
(De rien / pas de quoi / sans façon)
 
 
 
For more informations about these characters and their pronunciations, consult this page :
https://wushu-tao.com/page_ac_liste_car.php