The secret files called the Zacharis Dossier may cause a war between the East and the West. In order to obtain a painting that is supposed to be the hiding spot for these files, Loid and Fiona enter an underground tennis tournament run by the owner of the painting, Campbell. If they win, the art piece they're after will be presented. Loid and Fiona enter as a married couple and play various skilled players including pro players!
What if I go back to a life where 
Yuri is constantly worried about me?
ماذا إن عدت لحياة سيقلق فيها
يوري عليّ باستمرار؟
Was, wenn ich ihn verliere
und Yuri wieder Sorgen mache?
¿Qué haré si no tengo más remedio
que volver a vivir preocupando a Yuri?
¿Qué voy a hacer si no me queda otra
que volver a vivir preocupando a Yuri?
Je ne veux pas
retourner à ma vie d’avant
Cosa farei, se dovessi tornare alla vita precedente, 
dando di nuovo motivo a Yuri di preoccuparsi per me?
E se eu voltar a ter uma vida em
que o Yuri vive preocupado comigo?
А что, если он меня бросит, и Юрий снова
начнёт переживать, что я одна живу?