Hiiro realizes that he possesses Dagan Zot's heart, and that if he dies, Dagan Zot will die as well.  Only after Giruu reveals the depths of his devotion does Hiiro find the strength to carry on.
The key may be Dagan Zot.
قد يكون داغان زوتو المفتاح
La clave podría ser Daganzoto.
La clave podría ser Daganzoto.
Danguard est la clé du mystère.
La chiave potrebbe essere Daganzoto.
O segredo por trás disso
 deve ser Daganzoto.