Tanaka is very oblivious when it comes to love. That said, Ueno's methods can safely be described as extremely unconventional.
If you don't, you can't know
the awesome power of Rocker-kun, right?
وإلّا لن تعرف القوّة الرّائعة لروكر-كن، صحيح؟
Du verstehst die Kraft des Rocker-kuns nicht,
wenn du es nicht trinkst.
Sin beberlo, no comprobarás
el poder de Rokka-kun.
Sin no te lo bebes, no verás
el poder de Rokka-kun.
Il faut déterminer
l’efficacité de Fifiltre.
Se non lo fai, non potrai saggiare 
l'incredibile potere del Rocker.
Se não beber, não conhecerá
o poder do Rocker-kun, certo?
Как иначе ты осознаешь
великую мощь «Рокера»?