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.
they start off as strangers and 
stay strangers until the very end.
يبدؤون كغُرباء ويبقون غُرباء حتّى النّهاية
die sich von Anfang an fremd sind,
son desconocidos
desde el principio hasta el final.
son desconocidos
desde el principio hasta el final.
est à l’origine un inconnu,
allora è uno sconosciuto all'inizio
eles começam estranhos e
continuam estranhos até o fim.
то чужие друг другу 
с начала и до самого конца.