If it's crap ... We'll tell you
Hekikai no AiON is a nice little drama with good bits of action thrown in to the mix. It is written and illustrated by Kagesaki Yuna, the author and illustrator of another manga called Karin (a.k.a Chibi Vampire).
The story follows Tatsuya Tsugawa, a fifteen year old, who recently inherited 100,000,000 yen (1,229,256.45 dollars) after his parents were killed in a car accident. When he gets to school he sees a girl, Miyazaki, getting bullied and intervenes, but the girl says she "likes getting bullied" and Tatsuya is forced to drop it. Later that day when Tatsuya is walking his dog he sees a window break and Miyazaki being strangled and being forced out of the window. Tatsuya is about to run into the building to help but it is to late the she falls and hits the pavement, but as the bully walks out of the building a black dragon forms from the Miyazaki's blood and she is revived. She commands the dragon to devour the bully and the bully is engulfed in darkness, but the dragon spits the bully out. Miyazaki assures Tatsuya that the bully is fine and won't remember any of this and neither should he. But the next day as he is walking his dog he notices Miyazaki crawling into the cardboard box that she calls home. Knowing that he has the wealth and the space in his home he offers to let her stay with him and his aunt and uncle. Tatsuya forms a bond with this "immortal" girl, but winds up being sucked into her war with the "People of the Sea".
Plot wise the story is strong and compelling. The story is further complemented by the artists style. It falters at times with the plot as well as falling into certain tropes, but that can be said of any manga. The characters do develop over time in a natural way as well as good writing. The comedic parts are at times funny and worth a chuckle. Thankfully the author makes sprinkles the comedy into the situations in a smooth way most of the time so that the comedy doesn't seem forced. Also when there is action serves a purpose and very rarely is used for fan service. All in all Hekikai no AiON is a good manga worth reading and should be checked out. The only unfortunate thing is that it was published by Tokyopop and it is hard to find it any more.