The war is over, and it's time for a vacation! Yuuto and the gang travel to a vacation spot, where all the girls fight over who gets the right to wash Yuuto.
Father, why don't you stop sitting 
by yourself in the corner and relax?
Vater, warum kommt Ihr nicht aus Eurer Ecke
und entspannt Euch?
Padre, perché non ti allontani dall'angolo
in cui ti sei nascosto e non vieni a rilassarti?
Pai, por que não para de se
sentar sozinho no canto e relaxa?
Отец, может, перестанете сидеть в 
одиночестве в углу и расслабитесь?