Yabasawa-san really wants a certain part for her avatar, and asks the Sket-dan to join a game tournament put on by a cellphone game site. The Sket-dan isn't particularly enthused about the prospect, but when they find out that the Student Council will also be participating...
Activities like this are not 
a problem, occasionally.
No tiene nada de malo hacer esta clase 
de actividades de vez en cuando.
No tiene nada de malo hacer esta clase 
de actividades de vez en cuando.
Não tem problema em, de vez em 
quando, fazer atividades assim.