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 I've been captivated by the sight of 
you thinking." That doesn't feel quite right...
أوقات استحوذت فيها عليّ وأنت" 
...وسط التفكير" لا تبدو صحيحة
„Zeit, in der ich eingenommen war von dem Anblick,
wenn du grübelst“, klingt verdächtig.
"Veces que me cautivó la imagen
de ti pensando" no parece acertado.
"Veces que me he quedado embelesada
viendo cómo piensas" no parece exacto.
« Il me captive
quand il est concentré… »
"Volte in cui sono rimasta affascinata dalla vista
di te che pensi." C'è qualcosa che non mi torna...
"Vezes que fiquei fascinada ao vê-lo
pensando." Não parece muito certo...
«Не могла оторвать от тебя взгляд, когда
ты задумывался о чём-то». Странно...