Mahito deftly uses Yoshino's admiration toward him to make him fight Itadori. Yoshino races toward vengeance and Itadori exchanges blows with him to try and make him explain his motive, which leads to him learning the cruel truth from Yoshino's lips. That's when Mahito creeps up beside them and--
I don't know what 
relationship you have with him,
،لا أعرف علاقتك به
Keine Ahnung, wie ihr zusammenhängt,
¡No sé qué relación guardes con él,
¡No sé qué relación tienes con él,
Je sais pas
quelle relation t’as avec lui,
Non so in che rapporti tu sia con lui,
Eu não sei que relação
você tem com esse cara,
Не знаю, что тебя с ним связывает,