What does it mean "Blood teller"?
Hi, I didn't get the real meaning of this expression. I heard it in a Japanese song named "Blood teller". Here's the translation of the song, it's not really a good translation :p .
here's the song http://www.youtube.com/watch?v=ixLHTUx14Lo
and here's the lyrics

My heart will die, and my own hesitation will be the trigger
"Help me!" I waver
"Trust me!" In the voice from you, to you

Shall we pray for a miracle?
But tragedy has a never-ending heartbeat
It shall repeat deep in the darkness
Screams, pain, rage, malice.
The chosen Blood Teller

I don't want to cry, I don't want to see you any more
Our blazing affection has intersected
Come see me, chase after me while wanting to cry
Nobody can stop you

Is this the future? Or else a dream? Where is the answer?
This is the door that tests the present: do I break it? Open it? What should I do?

I'm pierced by words, and unnecessary pity comes too late
"Tell me!" I haven't
"Take me away!" Even the resolve in me, to me

Question

What does it mean "Blood teller"?
Hi, I didn't get the real meaning of this expression. I heard it in a Japanese song named "Blood teller". Here's the translation of the song, it's not really a good translation :p .
here's the song http://www.youtube.com/watch?v=ixLHTUx14Lo
and here's the lyrics

My heart will die, and my own hesitation will be the trigger 
"Help me!" I waver 
"Trust me!" In the voice from you, to you

Shall we pray for a miracle? 
But tragedy has a never-ending heartbeat 
It shall repeat deep in the darkness 
Screams, pain, rage, malice. 
The chosen Blood Teller

I don't want to cry, I don't want to see you any more 
Our blazing affection has intersected 
Come see me, chase after me while wanting to cry 
Nobody can stop you

Is this the future? Or else a dream? Where is the answer? 
This is the door that tests the present: do I break it? Open it? What should I do?

I'm pierced by words, and unnecessary pity comes too late 
"Tell me!" I haven't 
"Take me away!" Even the resolve in me, to me

Answer

Many Japanese people believe that each blood type has a certain personality and affinity, so it is common for them to ask someone their blood type or try to guess someone’s blood type by their personality, therefore the Blood Teller in this song is important.

Answer

Blood Teller may be a shorten expression for the phrase "Flesh-And-Blood Teller", which means the physical person who is telling the story. In movies and plays they are sometimes known as just "Tellers". The reason for the phrase "Blood Teller" may be due to the nature of the song and the theme of the heart, which uses blood.

The definition of "Teller" in the Merriam-Webster dictionary is "one that relates or communicates" and the example is "a teller of stories".

Answer

*the word

Answer

It doesn't mean anything in English. You should try asking a Japanese person what it means in Japanese. It's possible that the a word was translated literally from Japanese.