Ryo, the one who taught music to Yuto and then disappeared, suddenly appears in Yuto's life again. Ryo greets him casually, but Yuto gets angry and leaves. Thinking of Yuto's feelings, Keigo meets with Ryo...
But then, one day, we were 
closed off to the world.
لكن بعدها في يومٍ ما، انغلقنا عن العالم
Doch eines Tages wurden
wir von der Welt abgeschottet.
Pero un día, nos cerramos al mundo.
Pero un día, nos cerramos al mundo.
Mais un jour, on a dû rester à quai…
Ma un giorno, di punto in bianco,
le porte del mondo si sono chiuse davanti a noi.
Mas daí, um dia, nós 
 nos fechamos para o mundo.