Minami and Sayuri race to the scene of Tsubasa and Reina's date. After being moved to tears over the movie heroine's story, Reina tells Tsubasa about her own circumstances. Tsubasa, having been reminded of his own situation, then tells her his story.
It's from the diaphragm. 
It's a type of variety meat.
إنّها من الحجاب، إنّه نوع من اللحوم الداخليّة
Es del diafragma.
Es un tipo de corte especial.
Es del diafragma.
Es un tipo de corte especial.
Eh bien, c’est un type d’abat.
É do diafragma.
É um tipo de miúdo.
Вообще, конкретно этот кусок —
толстая часть диафрагмы.