Rundelhaus hid from his friends that he was one of the land people, but the price of fighting off the dire wolves was that he took a fatal wound.  If they can't save him, he'll die and he won't revive.
Shiroe...
Shiroe!
¡Shiroe-san!
– Shiroe !
– C’est Shiroe !
Shiroe...
Shiroe-san!