Grimmjow Jaggerjaques is violent, impulsive, and short tempered. He tends to act before he even thinks. He's always looking fowards to battles - particularly with those who have a high spirit power. And who know how to fight. Also if anyone makes a fool out of Grimmjow - he always come back for revenge. When excited an insane grin is formed upon Grimmjow's lips. Grimmjow also appears to be rude, sadistic, and quite rude.

In Sōsuke Aizen's espada, Grimmjow is ranked number six.  Meaning he is ranked as the sixth strongest out of the other ten Arrancar's in the Espada.Grimmjow was first seen when he was yelling at Ulquiorra Schiffer for not killing Ichigo when he was right in front of him. So he and a group of five other Arrancars made their way to Karakura Town to kill anyone with any source of spirit power. Whether they were strong or weak, Grimmjow wanted to clean up Ulquiorra's "mess".

Ichigo's friends managed to defeat the five Arrancar's that Grimmjow brought to Karakura Town. However, Grimmjow was able to beat Ichigo with no problem, leaving Ichigo wounded and weak. But when the last few minutes of their battle, Ichigo managed to use his "Getsuga Tenshou" to wound Grimmjow a bit. Leaving a vertical scar on Grimmjow's chest. After their un-finished battle Kaname Tōsen took Grimmjow back to the Espada's lair. When Kaname brought Grimmjow to speak with Aizen; he cut off Grimmjow's arm as punishment for disobeying orders. Thus his title as the sixth strongest Espada was taken away from him - leaving him as just an Arrancar. Later on Aizen assigned Grimmjow and a few other Espada members back to Karakura Town as a new mission. His immediate plan was to find Ichigo and kill him. Once found, the two fought a vicious battle - causing Grimmjow to be surprised at how powerful Ichigo has grown since the two's last battle. But when Grimmjow stabs Ichigo with his sword - Kuchiki Rukia attempted to save Ichigo by freezing him in a block of ice with her Zanpakutou. Of course this didn't stop Grimmjow - he broke free from the block of ice and again made a comback by attempting to use his Cero to kill Rukia. But when a tough Vizard named Shinji Hirako stepped in the nick of time to save the two Soul Reapers. Causing Grimmjow and Shinji to begin a new battle.

Ulquiorra Schiffer

Orihime Inoue

Ichigo Kurosaki and his friends managed to sneak into Las Noches (Aizen's Lair) to rescue Orihime. After a few Arrancars Ichigo battled, he ended up meeting Grimmjow once again. Grimmjow had long waited for his battle with Ichigo with hopes of finally killing Ichigo. So when the two met up, Grimmjow had Orihime heal Ichigo so he and Grimmjow could have a "proper" and fair battle. The intense battle caused Grimmjow to call out his Zanpakutou's name ("Pantera"), revealing his true form. In the end Grimmjow was defeated by Ichigo, but it is still unknown whether or not Grimmjow was truly killed.

Before Grimmjow became an Arrancar- he traveled throughout the lands where every Hollow, Vasto Lorde, and Adjuchas reside. He devoured Hollows and others to grow stronger and evolve. Eventually he met up with a few other Adjuchas whose goals were also to grow strong and evolve into Arrancars. The Adjuchas he met were: Shawlong Koufang, Edrad Liones, Yylfordt Grantz, Nakeem, and Di Roy. Shawlong and the Adjuchas attempted to eat Grimmjow since they all found him weak due to his size. But Grimmjow proved them wrong by defeating them first. Shawlong then asked Grimmjow to be their leader, fore they found that Grimmjow could help them achieve their goal far quicker compared to the pace they were going. He agreed, and he and the other Adjuchas traveled together to attain their goal. But gradually Shawlong and the Adjuchas found saw no results and realized that they couldn't evolve. So they asked Grimmjow to devour them - they decided that they wished to help Grimmjow succeed in attaining his goal. The Adjuchas knew that Grimmjow could evolve. Grimmjow refered to them as "cowards" and he devoured them as their wish. Later on when Grimmjow met Aizen - Aizen used the Hokyokou to turn the five Adjuchas into Arrancar. The five then still followed in Grimmjow's lead and were known as Grimmjow's Fracción.

Powers

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Grimmjow used the basic "Ceros" that every Arrancar uses. But he also has one special Cero that is a blue color - that only members of the Espada know how to use.  He also wields a Zanpakutou just like all of the other Arrancars - which holds all of their "true forms". His released form of his Zanpakutou resembles a jaguar and his hair grows to a long length. His abilities in his released form is that his speed is enhanced, he can shoot out very destructiive blades out of his elbows, and can shout a sonic scream.