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.
As a result of the various actions females 
in love take toward their partners
كنتيجة لمختلف الأفعال التي تقوم بها النساء
 الواقعات في الحبّ تجاه محبوبهم
Als Ergebnis der diversen Handlungen, die
verliebte Frauen mit ihren Partnern vornehmen,
Normalmente, mediante diversos
actos con la persona que aman,
Normalmente, mediante diversos
actos con la persona que aman,
témoigne de son affection
par un ensemble d’actions
Come conseguenza delle varie azioni che le donne
innamorate intraprendono nei confronti dei loro partner,
Como resultado de diversos atos que mulheres
realizam com os parceiros que amam,
Когда женщины совершают определённые
действия со своими партнёрами,