Shouta suddenly begins shutting himself up in his room. He's pouring over a complicated grimoire in order to create a magic item as a gift for Father's Day. Lucoa offers to help him since the task is so difficult, but he refuses and declares he must accomplish it by himself. However, he continues to fail to produce it...
so I have to at least find medicine 
that can cure her illness.
لذا يجب على الأقلّ أن أجد دواء
يستطيع علاج دائها
Dann muss ich wenigstens eine Medizin finden,
die sie von ihrer Erkrankung heilt.
Tendré que encontrar uno
que cure su enfermedad.
Tendré que encontrar uno
que cure su enfermedad.
Je peux toutefois chercher
de quoi guérir uniquement sa maladie.
Devo trovarle una medicina 
che curi la sua malattia.
então vou procurar algum remédio
que seja ao menos capaz de curá-la.
Так что… нужно лекарство, 
что лишь излечит её от недуга!