Black☆Star Part in the Story-Remedial Lesson

Black Star and Tsubaki try to sneak up on Soul and Maka as they enter the Death Room after all four of them had been called there by Shinigami. However, his loud voice gives him away again, to Tsubaki's dismay.

The four meet up with Shinigami, who tells them that he is giving them extra lessons, much to the protest of Maka and Soul, since they all have collected no souls at all recently. Black Star does not seem to mind this much, laughing cheerfully. Shinigami thus gives them a mission in order to defeat Sid Barett, their missing former teacher who was rumoured to have died and come back as a zombie terrorising the other students (apparently the rumour is true) and trying to get them to experience the freedom from the fear of dying. He also says that there is also the person who turned Sid into a zombie to consider. Black Star eagerly accepts the mission. Shinigami then adds that if they fail this mission, they will be expelled.

Everyone else is distraught about the threat of being expelled apart from Black Star, whom Tsubaki tries to get to take the mission seriously. The four decide to go to Hook Cemetery, where Sid's grave is. Black Star however, does not take anything seriously, and jokingly suggests that they urinate on Sid's grave, which Soul heartily agrees to.

However, at that moment, Sid attacks Maka, but Soul manages to save her before she is harmed. Sid picks up his gravestone and begins using it as a weapon. He proves to be a formidable opponent, and Black Star ends up having to defend Maka at some points, and soon ends up taking a hard blow from Sid's Living End attack. Angered that he has been hit, Black Star manages to retaliate with a kick to Sid's solar plexus, which causes the teacher to be impressed at his skills.

Maka and Soul tries to engage in a Soul Resonance and use Witch-Hunt Slash on Sid, but end up failing and almost hit Black Star instead. As they try to hit Sid, the zombie buries itself underground, appearing only to attack and disappear again. Realizing that Sid is following the Way of the Assassination, Black Star deems that there can only be one assassin on the field: himself. He manages to use Trap☆Star to catch Sid, but ends up catching Maka and Soul in the process.

The four then interrogate Sid as to who turned him into a zombie, and on his whereabouts. Black Star manages to coax Sid into saying that it was Franken Stein that had turned him into a zombie by flipping Tsubaki's skirt. Soul, determined not to lose, flips Maka's skirt as well, which amusingly provokes no reaction from Sid. Maka uses Maka Chop on the boys and Sid, which manages to have Sid tell him that Stein is in Patchwork lab, a place on the outskirts of Death City.

The students, with Tsubaki holding Sid captive, go to the laboratory, and meet with Stein, who makes a rather bizarre entrance by falling out of the building on his chair. However, he proves to be an amazing fighter, being able to use Soul Perception in order to analyse his opponents beforehand, and he takes out Black Star easily whilst still seated on his chair. Maka and Soul proceed to attack, but Stein manages to disarm Maka and prepares to start dissecting her. However, Black Star manages to get him to let go by using his Certain Kill: Black☆Star Big Wave. But he is surprised as the attack does no effect to him. Stein explains that as he had seen Black Star's soul and Soul Wavelength, he had been able to change his own Wavelength to match Black Star's, therefore Resonating with him and making Blakc Star's Wavelength attack useless. He then attacks Black Star with his own Wavelength, which causes him to lose consciousness in a pool of blood.

His friends deem him to be dead, and Soul and Maka, the latter regaining her courage to fight Stein, manage to engage in a successful Witch-Hunt Slash. However, Stein still manages to defeat them. When it appears all is lost, Stein and Sid reveal that all of this is just a part of the extra lesson planned by Shinigami. Soul protests that he had still killed Black Star, but the Meister then regains consciousness.

The next day, the four students are in class, when Stein, much to Soul and Maka's shock, appears and tells them that he is now their new teacher. Black Star merely makes a grumpy remark that Stein is standing out more than him.

Black☆Star Part in the Story-Prologue

Black Star defeats Mifune in their first match.

Black Star first appears with Tsubaki on a mission to take down Alcapone and his men. Although Tsubaki reminds him of the Way of Assassination, Black Star ends up giving himself away by making a big entrance right in the middle of the villains' banquet, using Tsubaki in Weapon form like a microphone, much to the Weapon's chagrin. Alcapone's men do not hesitate to attack them, and the two are forced to retreat using Tsubaki's Smoke bomb Mode.

Tsubaki is saddened by their failure, saying that they had not been able to acquire a single soul as of yet, but Black Star remains ecstatic, claiming that he was as 'big as usual' and made a great stage performance. The two contact Shinigami and Tsubaki tells them of their failed mission. Shinigami wonders on why they are failing so much even when they are quite skilled. Black Star interrupts and promises to turn Tsubaki into a Death Scythe, and offers him his autograph as a current substitute, which earns him a chop to the head by Shinigami.

Shinigami then tells them that although he would like to watch over them all the time, things have become problematic recently because Alcapone and his men have begun to go after a Witch Soul of the Witch Angela Leon. He also tells them that Angela has an incredibly strong bodyguard called Mifune and that his soul is more powerful than the average human's. His soul alone will count as ninety-nine souls. Realizing that Mifune's soul and Angela's Witch Soul would immediately turn Tsubaki into a Death Scythe, Black Star eagerly dashes off to face Mifune, with Tsubaki following behind, not waiting to listen to the rest of what Shinigami has to say about Angela.

Tsubaki however, stops Black Star and tells him that in their current state, it would be impossible to defeat Mifune and Angela. They would need to go through this mission properly. Angered by her criticism, Black Star attempts to prove to Tsubaki that he can easily follow the Way of Assassination, by sneaking up on Tsubaki whilst she is bathing at a waterfall. He manages to do it at first, but then ends up screaming when he sees her naked body, which causes an angry Tsubaki to throw a shuriken at him.

As the two make their way to Magic Castle Cinder where Angela and Mifune reside, Tsubaki asks Black Star if he has a plan. He confidently replies that the first thing he will do is make a big entrance, much to Tsubaki's despair. However, Black Star then swears to Tsubaki that he will make her into a Death Scythe, and she smiles and says that she knows he will.

However, as they reach the castle, they see Alcapone's men killed, and they are attacked by Mifune. Mifune asks them if they are after Angela. Black Star introduces himself to Mifune and declares a duel with him as he thinks he is quite strong. Mifune gives the two a chance to leave, but Black Star orders Tsubaki to change into Chain Scythe Mode. Noticing that Black Star is a person from Shibusen, Mifune prepares to attack, engaging in his Infinite One-Sword Style.

Mifune quickly proves to be more than a match for Black Star, as the Meister struggles against his swordsmanship. Mifune says so to Black Star, that his Weapon is the only thing protecting him, and that no matter how potent a Weapon is, if its Meister is not competent, it will be useless. He gives one last chance for Black Star to leave, saying that he does not like to kill a child. However, Black Star, angered at Mifune for calling him a child, proceeds to attack Mifune by throwing Tsubaki at him in Shuriken Mode, followed by Smoke bomb Mode, and then attempts to cut Mifune under cover of the smoke by grabbing one of his katanas. However, his loud voice gives him away, and Mifune strikes him down.

Tsubaki watches on, horrified, thinking Black Star is dead. However, the Meister gets up, and yells at Mifune for hitting him with the back of his blade, saying that only he can do those kind of moves. Mifune instead says he feels sorry for Tsubaki, as she has to put up with him. He calls Black Star a 'small kid.' However, Tsubaki defends Black Star, saying that he can succeed if he tries, despite being a bit of an idiot at times. Black Star, now furious at Mifune, accuses him for trying to stand out more than him, and declares that the main role will always be himself. Deciding to take the fight seriously, he successfully follows the Way of Assassination. By covering himself with Tsubaki's Smoke Bomb Mode, he uses Tsubaki's Dummy Star Mode to distract Mifune, before taking down Mifune with one hit using his Certain Kill: Black☆Star Big Wave. As Mifune is defeated, Black Star states that it obvious he lost to someone as great as him.

He proceeds to interrogate Mifune on the whereabouts of Angela. Mifune refuses to say anything and Black Star is about to lose his patience when Angela herself arrives and begs the two to spare Mifune. Black Star is startled as Angela is only a small child, and that Mifune is defending her until she can fend for herself. Mifune tells Black Star that he can take his soul, but he would fight to the death for Angela. In the end, Black Star does not kill the two, repeating Mifune's words as he leaves, that he would not like to kill a child.

Back at the DWMA, Black Star gives all of Alcapone and his mens' souls to Shinigami, who asks him why he is not taking them when the going is good. Black Star declares that someone as great as him has no need to take credit for someone else's work. He asks for Tsubaki's opinion and she happily agrees.

Later however, Black Star is back to his old tricks again, peeping on Tsubaki in the school baths, which earns him a shuriken thrown into his head.

Soul Eater Black☆Star History

Black Star's Soul

Black Star comes from a long line of assassins known as the Star Clan (星族 Hoshizoku). The clan was known as a group of ninjas who did anything for money. They victimized people in many areas, killing many innocent people, which made them infamous in various places. Due to their actions, the entire clan was exterminated by Shibusen thirteen years prior to the series. Black Star, who was still an infant at the time, was taken in by Shibusen, where he was raised by Sid Barett. He showed skill and talent in his abilities from a very young age, but was still ostracised by many, blaming him for everything that the Star Clan had done in the past. He and Maka apparently knew each other from childhood, and there is a possibility that they were friends from a young age, since in a flashback, Maka thought that Black Star was 'cool' and did not bear any malice over his heritage. Black Star bears no malice over the loss of his clan, because he understands that his parents led a wretched life and eventually paid the price for it.

Due to his ego, many people ignored him, and he constantly failed to collect any souls of Evil humans. On the day of the Shibusen entrance ceremony, he stood on top of the DWMA and declared his greatness to the new students below. At first, it seemed as if everyone ignored him and left, but then Black Star found Tsubaki applauding. Impressed that someone had noticed his greatness for the first time, the two introduced each other, and after finding out that Tsubaki was a Demon Weapon, they became partners.