“Kylian Mbappe spoke to me, and asked me if I could come to Paris but I told him I want to join Real Madrid," Aurelien Tchouameni has said in his Real Madrid interview.
"My choice was always Madrid - he [Mbappe] understood my decision, he’s happy for me.
“Camavinga told me: you have to join us at Real, come there!”
Indeed PSG tried their best to sign Tchoumeni from Monaco. It turns out that it was the player's will to play in Real Madrid that won in the end.
Source: Real Madrid CF | (h/t Fabrizio Romano)