In order to prove to Yuri that they are actually a married couple, Loid and Yor are supposed to kiss. Loid is willing to get this done immediately for the sake of Operation Strix, but Yor can't do this sober, so she ends up downing a bunch of wine and gets drunk.  Yuri sees his sister this way, also gets drunk, and is unable to make rational decisions anymore...
I'll also do everything I can to 
be there for her from now on,
سأبذل أيضًا كلّ ما بوسعي 
،لأحميها من الآن فصاعدًا
Aber von nun an werde
auch ich für sie da sein.
Yo haré lo que sea
para apoyarla en el futuro.
Yo voy a hacerlo todo
para apoyarla en el futuro.
Je la soutiendrai à mon tour
du mieux possible,
Farò anch'io del mio meglio per sostenerla...
Também farei de tudo
por ela daqui para frente,
Отныне я тоже буду
поддерживать её изо всех сил.