The girls are running in their exercise outfits, with the boobs swaying to and fro. Arata's heart races. Everyone's having great time, and then a ghost appears in the library. Arata and the gang go to check it out, and are forcefully transported to the "Eternal Library". There they find the lost Trinity Seven!
So calling any of it taboo is simply nonsense.
Denkst du also nicht, etwas als
Tabu zu bezeichnen, ist sinnlos?
¿No te parece un sinsentido que decidamos 
qué está prohibido y qué no?
¿No te parece un sinsentido que decidamos 
qué está prohibido y qué no?
L’interdit, c’est précisément
ce qui s’éloigne du bon sens.
per cui dire che è proibita non ha affatto senso.
Então não acha que considerar
 algo proibido não faz sentido?