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...
The ideal angle seems to be 
between 30 and 40 degrees.
.الزاوية المثاليّة تقع ما بين 30 و40 درجة
Der optimale Winkel scheint
zwischen 30 und 40 Grad zu liegen.
El ángulo ideal parece ser
entre 30 y 40 grados.
El ángulo ideal parece ser
entre 30 y 40 grados.
L’inclinaison idéale
est de 30 à 40 degrés, apparemment.
L'angolo ideale sembra essere tra i 30 e i 40 gradi.
O ângulo ideal parece ser
entre 30 e 40 graus.
Идеальный угол подъёма — 
тридцать-сорок градусов.