Tale of the crest
The tale behind the crest is rather unique and mysterious. It was given to Angel over 3 years ago from her friend Epyon,a hell cat. Epyon was able to transform in different creatures, one of them was a black dragon. Epyon told angel that the crest was made by the four dragons of life. Each had given the crest a certain power for the holder to posses.
The dragons feared this crest would be used for evil, so it was hidden until the day angel came across them. Epyon brought Angel and his sister to meet the dragons for the first time. Upon seeing how pure and innocent Angel was, they asked Epyon if she was worthy of this special crest. He quickly agreed and on that day Angel was given the crest. She was told it would help guide her powers and make her stronger.
The crest indeed made Angel's powers stronger though it had a price. The crest would harm Angel in order to see how strong her will was. Akune begged Angel to get rid of the crest but she couldn't part with it. As years passed the crest slowly accepted Angel as its carrier and now the strength of its powers is undetermined. Angel won't allow any she doesn't know well to touch the crest. It protects itself by harming any who is not worthy of its power.