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...
If we achieve the same result no 
matter how many times we do it,
لكن إن أحزرنا نفس النتائج 
،مهمّا كرّرنا التجربة من مرّة
Kommen wir bei wiederholter Durchführung
stets zu demselben Ergebnis,
Si repetimos más ese mismo resultado,
Si repetimos ese mismo resultado,
Plus l’on reproduira le phénomène,
Se otteniamo lo stesso risultato
indipendentemente da quante volte proviamo,
Se o resultado se mantiver
em todas as iterações,
Если результат будет повторяться,