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...
But there are very precise accounts of a 
height differential of 23 cm being ideal.
لكن هنالك حسابات دقيقة سابقة تفيد بأنّ
 .فارق الطول المقدّر بـ 23 سم يعتبر مثاليّا
Aber es wird impliziert, dass 23 cm
der ideale Höhenunterschied ist.
Pero hay testimonios precisos
de una diferencia ideal de 23 cm.
Pero hay testimonios precisos
de una diferencia ideal de 23 cm.
La différence de taille idéale
est de 23 cm.
Ma secondo resoconti credibili 
la differenza di altezza ideale è di 23 cm.
Mas há relatos precisos de que uma
diferença de 23 cm na altura é ideal.
Есть точные данные,