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. 
Sorry.
.آسف
Verzeih.
Perdona.
Perdona.
Pardon.
Scusa.
Desculpa.
Извини.