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...
When black reaches about 97.1%, 
the chances of all black increase to over 5%
عندما تصل نسبة اللون الأسود إلى 97.1% ، فإنّ فرص
 %كونها جميعها سوداء سترتفع لنسبة 5
Wenn schwarz bei etwa 97,1 % liegt,
wird „alle schwarz“ zu 5 % wahrscheinlich.
À partir de 97,1 % de noirs,
Quando il nero raggiunge il 97,1% circa, 
le possibilità che siano tutti neri supera il 5%
Quando o preto alcança cerca de 97,1%,
a chance de todos serem pretos passa dos 5%,
Теперь чёрных воронов 97,1% 
и вероятность,