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...?!
That one part aside, maybe it's that they're 
all rather fashionable places...?
بغضّ النظر عن آخر واحدة، فجميعها أماكن عصريّة...؟
Ab von dem da sind das etwa
alles recht hübsche Orte?
Excepto por una, todos
son lugares bonitos y elegantes.
Excepto por una, todos
son sitios bonitos y elegantes.
À part une,
Tralasciando quella, forse è che sono
quasi tutti bei posti alla moda?
Tirando aquele, é porque todos
são lugares com certa elegância...?
Наверное, во всех, кроме последней, 
красивая окружающая обстановка.