Seita has started going to temple school, but it looks like he's finding it hard to fit in with the others. Apparently the reason lies in Hinowa's extravagant stacked lunch boxes, but Hinowa herself doesn't understand that at all. As such, she makes Tsukuyo make lunch for him, but...
You just have to cook something up
and pack a proper lunch for him.
عليكِ الطهي بالفعل وإعداد عُلبة غداء له
Deben esforzarse y darle un buena lonchera.
Você tem que cozinhar e 
preparar a marmita dele.