Seven Stars
These are Shikabane who group together because instead of following their fleeting regrets and obsessions right before death, they follow their nature. Humans spend their entire lives trying to hide that nature of them. But the Seven Stars release that nature, which gives them much more power than normal Shikabane. Each one also as a powerful curse that they had since coming back as Shikabane. Led by Hokuto and Hazama as her right hand man, their goal is to destroy the Kougon Sect, because the Kougon Sect wished to destroy them.
Hokuto
A special Shikabane who has no regrets, obsessions or even nature within her. Her death however, makes her one of the most dangerous, yet powerful undead being around. She was raised as a sacrifice, born to be killed as a child. She never experienced grief, pain, sadness or even happiness. Because of this, she is really curious of everything that happens around her int he world, just like a baby. But even so, she considers even a harmless fly or a hand that touches her to be a razor blade, not knowing about them. Right after she died, she was reborn as a Shikabane, gaining freedom for the first time. Makina was also made into a Shikabane because the Seven Stars needed her to give Hokuto a reason to fight against the Kougon Sect, because if they made Makina her enemy, she would fight against anything that has to do with being her enemy. Makina's family was also the one to practice the human sacrifice that created her in the first place. Akasha even made her into his Shikabane Hime, but she killed him after he rejects her for his previous Shikabane Hime. She escaped with Hazama in the final episode, but is tracked down by Makina and Ouri. The series ends with her and Makina continuing their battle, with Makina saying that she will make Hokuto remember what it means to be alive, because she believes that Hokuto was once alive, and felt sadness, pain, grief, and happiness; she just doesn't remember. She is mostly recognized by her white hair, different colored eyes, and the symbol of the Seven Stars carved down the left side of her face.
Isaka
Known for his ability to open portals and making trenches to trap the enemies. Nothing was really revealed of his past or how he died. At the end of the series in the last episode, however, when Toya died, he started going mad. Desperate to not be destroyed by the Kougon Sect, he destroyed himself right after Toya was killed.
Hazama
Hazama has giant centipedes for arms. At first glance, most assume that he was the leader of the Seven Stars. In reality, he is the right hand of the true leader, Hokuto. He also seemed like the one in the Seven Stars that could calm Hokuto down when she has a tantrum, because she gets really interested in his centipede arms. He is responsible for the ambush that led to the death of Akasha's Shikibane Hime. After his plan to use Hokuto to assault the Kōgon Sect fails he escapes with her in the final episode. He is most recognizable by his centipede arms and the mark of the Seven Stars carved onto his neck.
Kowaku
One of the Seven Stars, as well as the first of the Seven Stars to fall, his curse allows him to change the make up of his body. He can change the shape of his body, as well as the content of his body; for example, he can make his body flammable and explosive. His brain, however, turned out to be in the beads of a giant necklace her wears around his neck. Begging for forgiveness, Makina told him the words that he told her two years before when he and the Seven Stars killed her family: "How ungraceful" and killed him near the end of the first season. He is most recognizable by the mark of the Seven Stars on his tongue.
Ena
Ena was obsessed with beauty. His past was revealed that he tried to find beauty in everything, even in corpses of people he killed. After that, he killed himself, thinking he will find true beauty in the next world of death. His curse allows him to switch from one corpse to another, as long as they are nearby. His Shikabane body is made up of many dead corpses he thought was "beautiful" combined together. He called that body the "best body" because of how beautiful he looked in it. He was also the one who who took over Ouri's body that made Ouri stab Keisei near the end of the first season. He was killed by Makina Hoshimura.
Hizuchi
Ouri's mother was responsible for kidnapping him as a child and, in the end, his death by starving him. He came back as Shikabane with the regret of not being able to eat anything. When he became a Shikabane, he ate all his dead friends who were also killed by Ouri's mother. Even though he was a Shikabane that kills the living, he felt horrible inside. So Hizuchi joined the Seven Stars and was determined to make Ouri pay for what happened to him, by reawakening the Shikabane part in Ouri that was born with him, since his mother was a Shikabane. He almost made Ouri eat his own friends that Hizuchi just captured for this purpose, as to make Ouri feel the pain that he felt when he had to eat his own friends. Makina arrived just in time to save Ouri and make him revert back into human form. Hizuchi attacked then, but Ouri used his Zadan technique to stab Hizuchi through the chest, while Makina shot him down. In the end, he died, calling out for his mother.
Toya
The most bizarre looking of the Seven Stars. She appears to be a man covered in a coat, but where a head should be, there is a cluster of balloons. Her curse allows her to manipulate the minds of people. She can also place balloons on people that cause their happiness to grow, until it reaches its peak. At that point, the balloon breaks and devours the person. It is revealed near the end that Toya was a little girl from a very poor family, who had barely anything to eat. One day, she and her parents suddenly went to an amusement park for a fun day before they committed suicide together in the Ferris Wheel. As a result, Toya views death as happiness, and also doesn't even know herself that she is really dead. She eventually questions herself about her happiness, causing her own balloon to pop and kill her. She was also responsible for the death of Nozomi.