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.
If I've got that, I can switch 
out our hearts, right?
إن حصلت عليه فسأتمكن من تبديل قلبينا، صحيح؟
Herzen austauschen ist
damit doch bestimmt drin!
Si la consigo, podré cambiar 
nuestros corazones, ¿no?
Si la consigo, puedo cambiar 
nuestros corazones, ¿no?
Si je mets la main dessus,
je pourrai récupérer mon cœur !
Con quello potrò rimettere al loro posto i cuori, no?
Se eu conseguir recuperá-lo, posso 
trocar nossos corações de volta, certo?