Tetsuo has offered to work with the girls to figure out how Hikari and Yuki, who don't handle heat or sunlight well, can spend summer in comfort. But the school's head teacher suggests that the demi girls' total reliance on Tetsuo might actually be hurting them in the long run. This weighs on Tetsuo's mind...
Why not? You have nothing 
else to do, right?
لِمَ لا؟ ليس لديك شيء آخر لتفعله، صحيح؟
Seien Sie kein Spielverderber.
Sie schaukeln eh nur Eier.
¿Por qué no? No tiene nada que hacer.
¿Por qué? No tiene nada que hacer.
Allez, vous n’avez
rien d’autre à faire.
Che problema c'è?
Non ha nient'altro da fare, no?
O que tem? Não tem nada
 para fazer depois, tem?
Почему? Всё равно вам делать нечего.