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...
I thought about the person 
who wrote the grimoire
فكّرتُ في الشخص الذي ألّف كتاب السّحر
Ich hab mir Gedanken
über den Verfasser gemacht
Tras ponerme a pensar en el autor,
Tras ponerme a pensar en el autor,
Je me suis renseigné
sur le grimoire.
Mi sono concentrato sull'autore del grimorio
Eu pensei na pessoa que
escreveu o grimório,
Подумал, как рассуждал автор!