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...
Those who refuse to move ahead because 
of small vanities, pride, reticence...
...أولئك الذين يرفضون التقدّم بسبب حيل تافهة، الغرور، التردّد
Wer den Fortschritt behindert aufgrund
von falscher Eitelkeit, Stolz, Feigheit …
Los que se niegan a avanzar
por vanidad u orgullo…
Quienes se niegan a avanzar
por vanidad u orgullo…
Chi si rifiuta di andare avanti a causa di
piccole vanità, orgoglio, reticenza...
Quem se recusa a prosseguir
por vaidade, orgulho e afins...
Те, кого сдерживает самолюбие, 
гордость, скрытность...