Nightcore - Immortal Flame [HD] 

She IS a sword.

there are several ways to interpret that comment, i'm gonna go with she's a badass.

Spirit of the eternity sword is about swords that have sentience and are very powerful, Narukana (this one) is especially powerful and had an entire universe created around her to seal her off.

:I i need to watch/read about this.

if i remember correctly his first channel was terminatet cause of copyright strikes and he had to reupload his videos on this new channel that is wy he has so few subs because not many now that he opened up a new channel

XD

Wow. xD