A new school term has started, and parent-teacher meetings are on the horizon. At school, Yuta and Saki still have not told anyone that they are siblings. As their mother, Akiko wants to attend both meetings, but she worries it would expose their secret.
A stepbrother is really 
nothing more than a stranger.
الأخ غير الشّقيق هو ليس أكثر
من مجرّد غريب
Ein Stiefbruder ist auch nur ein Fremder.
Un hermanastro es solo un desconocido.
Un hermanastro es solo un desconocido.
Le fils de mon beau-père
n’est qu’un inconnu.
Un fratellastro maggiore
Um meio-irmão não passa de um estranho.
Сводный брат — это 
просто посторонний человек.