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...?!
She's so eloquent, it's nearly 
impossible to out talk this woman.
.إنها بليغة للغاية، من المستحيل التغلّب على هذه المرأة
Sie ist so entschieden, redend sieht
man gegen diese Frau kein Land.
Es tan elocuente
que es casi imposible pararla.
Es tan elocuente
que es casi imposible pararla.
C’est impossible de la battre
quand on doit débattre.
È così eloquente che è quasi impossibile farla tacere.
Ela é tão eloquente, é quase
impossível contra-argumentar.
Она слишком убедительна, 
её не переспоришь.