Things have been tense between Ryuto and Runa since the culture festival. Ryuto plans to tell Maria they can't be friends anymore, but a shocking incident leads to a discovery that changes everything for Maria, Runa, and Ryuto. 
I'm so sorry. I was wrong.
.أنا جد آسفة. كنت مخطئة
Es tut mir leid. 
Ich war auf dem Holzweg.
Lo siento. Estaba equivocada.
Lo siento. Me equivoqué.
Pardon. J’avais tort.
Scusami.
Desculpa. Eu errei.
Прости. Я ошибалась.