One day, a gifted graduate student in Saitama University's science department, Himuro Ayame, confesses her feelings to Yukimura Shinya. However, as neither of them have any experience with romance, they are worried as to whether it truly is love or not. They decide to discover "the standard conditions of love" so that they can judge each other's feelings by them. Even as their underclassman in the lab, Kanade, throws up her hands in exasperation, Yukimura and Himuro attempt to quantitatively measure "thrilling palpitations of love" by taking their heart rates while performing actions such as "kabedon," "chin-lift," and "sleeve-roll," but...
You see, it's true that in the beginning, 
I experienced a sort of throbbing in my chest,
كما ترون، صحيح أنّني في البداية 
،شعرت بخفقان في صدري
Anfangs verspürte ich eine Art
Pochen in meiner Brust, …
Es cierto que al principio experimentaba
cierta agitación en el pecho
Es verdad que al principio experimentaba
cierta agitación en el pecho
C’est vrai qu’au début,
mon cœur palpitait.
Vedi, è vero che all'inizio ho provato
una sorta di pulsazione nel petto
De fato, no começo eu senti algo
como uma palpitação em meu peito,
Дело в том, что сначала я и правда 
чувствовала какой-то трепет в груди