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...?!
Like that time on the Ferris wheel 
when we were collecting date data?
ذلك الوقت على العجلة الدوّارة عندما كنا 
نجمع بيانات الموعد الغراميّ؟
Als ihr im Riesenrad saßt und
Datenmaterial gesammelt habt …
Cuando reunían datos
en la rueda de la fortuna.
Cuando reuníais datos en la noria.
Quand vous étiez tous les deux
dans la grande roue,
Quella volta sulla ruota panoramica
quando stavamo raccogliendo dati.
Quando vocês estavam na roda-gigante
e nós coletamos alguns dados?
Во время экспериментального свидания 
на колесе обозрения