In order to destroy the White World's world crystal by injecting a virus into it, Carene must fly at an incredibly fast speed. The only one who can stop her now is Stella and her Exceed with the power of super-speed. With the help of Saya and the others, Stella chases after Carene.
I imagine the two of them 
combined are quite fast,
،أتخيّل أنّ اندماجهما فائق السرعة
Durch ihre Verschmelzung mögen
sie zwar recht schnell geworden sein,
Imagino que las dos combinadas 
serán muy rápidas.
Imagino que las dos combinadas 
serán muy rápidas.
Avec leur fusion, elles peuvent
atteindre une vitesse impressionnante.
Suppongo che unite
quelle due siano diventate parecchio veloci.
Imagino que as duas 
combinadas são bem rápidas.