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...
Time my heart rate has increased 
by being with you...
...الأوقات التي ارتفع فيها معدّل نبضات قلبي وأنا معك
Zeit, in der mein Herzschlag
in deiner Gegenwart erhöht war …
"Veces que mi ritmo cardíaco
aumentó estando contigo".
"Veces que mi ritmo cardíaco
ha aumentado estando contigo".
« Mon cœur bat fort
quand il est là. »
"Volte in cui la mia frequenza cardiaca
è aumentata stando con te..."
"Vezes que meu coração acelerou
ao estar com você"...
«Учащение пульса в твоём присутствии»...