Half American, half Japanese. She was just a regular student at the Kashima Art Institute not long ago, that is, until she snooped around in the school's mini museum and ended up walking away with a demonic katana; then an evil guy posing as a teacher at the school found out that she had it and sent his "students" after her. It's okay, though, Serena has a kick-
ass kung-fu sidekick named Mei Lu! Yay! Cool story, right? Right!
Kay, so Serena has this sword called the Bokuden Blade. The blade was named after Tsukahara Bokuden, a samurai from feudal Japan whose story has been forgotten with time. I'll tell you what is* known about him though. He was the epitome of badass, holding over 70 victorious battles under his belt and he managed to stay undefeated in all of his individual duels. Like I said, badass.
Um let's see...oh! So Bokuden lost his mind and went around killing people like a maniac and that's when the masters of a secret samurai order known as the Guardians of the Kashima Grand Shrine --I know, it's a long-winded name but kinda cool still but yeah-- the guardians of the shrine sent their best student in pursuit of Bokuden. The end result? Bokuden got killed.
I know, that's unbelievable given his track record, but it happened! So get over it; and the samurai who brought him to justice was none other than the great Hidetsuna Kamiizumi. If you don't know about him you can google his name or something, but moving right along, Hidetsuna had an evil, evil black smith craft a sword that could contain Bokuden's soul within it for eternity so as not to let his evil befall the world again. Later on, before Hidetsuna died he passed the cursed sword on to his purest disciple who then continued that tradition; and for hundreds of years the Bokuden Blade has been passed down through the secret order of The Guardians of Kashima Grand Shrine. Well, that's the gist of it, but there's more to come so stay tuned!
- - - Random facts about the sword - - -
This state may be used to potentially penetrate magic / energy barriers, or to cut the more durable enemies. A very dangerous state for the opposition to be faced with as it may nullifies healing factors. This does not apply to those who can heal with magic or by technological and traditional medical means.
The sword drains the blood / soul / energy / life force of whatever it cuts or pierces, directing that energy into the Bokuden Bearer, a healing factor of sorts that may potentially reverse the effects of any injury. The longer the blade remains in what it cuts or pierces, the more energy it draws out, and if the Bokuden Bearer is not careful, they may completely drain the life of those they cut.
A state of invocation that utilizes lightning fast attacks which are meant to temporarily stun an opponent. This gives the Bokuden Bearer time to strike with a finisher or escape.
From a distance, the bearer can launch blade-like gusts of wind sharp enough to cut through flesh and possibly even metal.
Similar to the sword of shadows but in this state the wielder can defend and deflect any incoming attacks by using unreal agility and dexterity.