Ibarada suggests that one of the greatest factors in the base conditions of romantic love is "whether or not you want to kiss the person," so Yukimura decides to try to kiss Himuro. However, Himuro doesn't like the idea of a kiss where the exact angle is measured with a protractor.  When Himuro realizes that if the mood were more like it had been in the Ferris wheel, she might not mind a kiss, she and Yukimura create an equation to numerically define "mood value." In what location might the "mood value" be highest? And will the two of them be able to kiss...?!
Besides, romantic emotions are 
irrational to begin with, aren't they?
زيادة على ذلك، المشاعر الرومنسيّة تعتبر 
غير منطقيّة أصلًا، أليس كذلك؟
Zumal amouröse Gefühle doch
nie vernunftbasiert sind, oder?
Además, las emociones románticas
no son racionales, ¿verdad?
Además, las emociones románticas
no son racionales, ¿verdad?
In più che, tanto per cominciare,
i sentimenti romantici sono irrazionali, no?
Além disso, emoções românticas
por si são irracionais, não?
Кроме того, романтические чувства 
сами по себе иррациональны.