Yukimura is working hard on his computer, as usual, when Himuro suddenly says, "I am in love with you. Her confession greatly shakes Yukimura. Unlike the last time, Himuro states her feelings matter-of-factly. Yukimura asks, "What theory did you use to determine that you love me?" Himuro replies by taking Yukimura out on a date and begins performing experiments they've done before such as measuring heart rates, using an emotion counter, collecting saliva, and the kiss experiment.
then the definition of love 
we've been searching for...
...إذا فتعريف الحبّ الذي كنا نبحث عنه
und so zur gesuchten Definition
der Liebe gelangen.
eso haría que la definición
de "amor" que buscábamos…
eso haría que la definición
de "amor" que buscábamos…
Voilà la définition
que nous cherchions.
allora la definizione di amore che stiamo cercando...
Então a definição de amor
que estivemos pesquisando...
получается, что искомое
определение любви...