Rukia Kuchiki vs. Rudbornn Chelute

Rukia Kuchiki vs. Rudobōn is the battle between the Shinigami, Rukia Kuchiki and Captain of the [Exequias, Rudobōn, taking place during the Invasion of Hueco Mundo. It is Rukia's second battle and Rudobōn's first battle where he exhibits his powers.

Prologue
After Orihime Inoue is taken back to Sōsuke Aizen by Coyote Starrk. Aizen makes an announcement to all of Hueco Mundo, stating that Orihime is in the fifth tower, should anyone want to retrieve her, and that he has closed the Gargantas that the captains used for entry into Hueco Mundo. He informs them that he is leaving to destroy Karakura and orders Ulquiorra Cifer to take charge of Las Noches. Ichigo Kurosaki then flies off to rescue Orihime as Ulquiorra declares his challenge to Ichigo. Before he gets far though, he is attacked by Rudobōn and the Exequias. The Exequias to look to be able to stop Ichigo from going any further as they overwhelm him with their numbers. However, they are ambushed by Renji Abarai, Sado Yasutora, and Rukia Kuchiki. As Rudobōn scolds Calaveras to not get distracted, he draws his swords and moves to attack Ichigo. He is halted by Rukia's Rukia Kuchiki technique which freezes his right arm. As Ichigo expresses his joy that Rukia is alright, she tells him to hurry up and continue on. Rudobōn then frees his right arm and faces off against Rukia as Ichigo leaves the battlefield.

Battle
Initially, the battle begins with Rukia fighting Rudobōn's subordinates. She quickly manages to defeat all of them. As Rukia comments to Rudobōn that his underlings have all been defeated, Rudobōn releases his Zanpakutō, Árbol. Rudobōn disregards Rukia's comment, asking her what difference was there if all of his subordinates have fallen. He goes on to tell Rukia that she will soon learn that defeating his underlings will not bring her victory. Rukia then turns her head towards the fifth tower as she hears a loud rumble and blast from the building. She murmurs Ichigo's name out of concern for her friend.

As their battle continues, Rukia continues to fight one Calavarea after another. Rudobōn taunts Rukia as she appears be struggling in fighting against his numerous Calaveras. He goes on to tell Rukia that Árbol "godlike" ability is to continuously create loyal soldiers without limit. More Calaveras are created from Rudobōn's Árbol and attack Rukia. Rudobōn then proceeds to lament at how despite being given a power like a divine creator from Aizen, he could not make the level of an Espada. He tells Rukia that they could never match them as opposing such "greatness" is the pinnacle of foolishness for the "undisciplined dogs" that Rukia and her allies are because they are just "'birds against a shield.'" As he is about to go on, he notices something in the battle between Ichigo and Ulquiorra. He then turns his head and notes Ulquiorra has gone through the dome of Las Noches. Rukia sees this as an opening and take advantage of it by freezing Rudobōn's "branches." She tells him that Rudobōn should not have shown her his power because if Rudobōn's power is bear soldiers like fruit, then it is simply a matter of freezing his "fruit-bearing limbs" because frozen limbs bear no fruit. Rudobōn curses her. Before Rukia can finish Rudobōn, she is surprised by the appearance of an angry and bigger Yammy Riyalgo attacks him, breaking a part of his mask in the process.

Aftermath
The battle between Rudobōn and Rukia becomes a draw because Yammy Riyalgo interrupts their fight and attacks Rudobōn, sending him away. It is unknown about what happened to Rudobōn afterward. As Yammy makes his arrival, Rukia joins Renji and Sado back on the ground. Sado recognizes the Espada and says his name to which Renji asks if it was the Espada that Tōshirō Hitsugaya was talking about. Sado then goes on to comment that Yammy has become bigger. Renji asks Sado if Yammy's body became bigger but Sado tells that while Yammy has not gotten bigger, he is clearly different as it feels like he doubled in size. Yammy curses Uryū Ishida. All four of them then notice a massive reiatsu from above the dome, with Rukia doubting in fear over whether the intense reiatsu was Ichigo's. The three would then be fighting against Yammy.