The mock exams are coming up and Shun is worried about his future.  Some of his friends are easy going about the test while others are serious about it.  He feels stuck in the middle without a clear direction.
This isn't worth losing our 
precious vacation days over.
No vale la pena desperdiciar nuestros 
valiosos días de vacaciones.
Não vale a pena perder nosso 
precioso feriado por isto.