Fukyuu. Not pronounced like the English swear word, but pronounced "foo kyoo".
meinu
Fire wolf is kaji ookami in Japanese. However, there are many words for fire in Japanese, and I am not certain if kaji is the best word to use in this context. Other words for fire in Japanese are "hi" and "ka".
hi no tora
Hi no akuma
火マスター
Uh, please forgive me for I do not know how to say "the" in Japanese but "Fumetsu" is immortal im Japanese. :) Hope I helped.
不滅の雨 Fumetsu no ame
moeteiru
我が不死身よ (waga fushimi yo) is a fitting way of saying that in Japanese.
meinu
Fire wolf is kaji ookami in Japanese. However, there are many words for fire in Japanese, and I am not certain if kaji is the best word to use in this context. Other words for fire in Japanese are "hi" and "ka".
hi no tora
Hi no akuma
Kasai bakuhatsu
火マスター
Ōgon no kasai
Hi no bakuhatsu