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. 
It's all, all thanks to Runa.
.كل الفضل يعزو لرونا
All das … All das hab ich
nur Runa zu verdanken.
Todo eso se lo debo a ella.
Todo eso se lo debo a ella.
Tout ça… tout ça, c’est grâce à elle.
È tutto merito di Runa. Tutto quanto.
Tudo, tudo foi graças à Runa.
Всё это благодаря Руне.