Keika and Ki learn more and more about Shouken's past. Shouken has special feelings for Ki, but when he tries to explain his feelings to his brother, Sekijin, he is scolded and forced to make the ultimate choice. When Ki and Keika finally reach his memories of the day when he pointed the gun at his own head, they learn the real reason that Shouken decided to take his own life.
with my absolutely secret mission 
still ring in my ears.
Ich erinnerte mich immer noch daran,
was mein Bruder sagte, als ich das Haus verließ.
mi hermano me dijo algo
que aún resuena en mis oídos.
mi hermano me dijo algo
que aún resuena en mis oídos.
J’entends encore mon frère
Il giorno in cui lasciai la casa
com a minha missão completamente secreta,
ainda ressoam em meus ouvidos, mesmo agora.