Description
Kawaki Arc
Delta stated that it would be difficult infiltrating, but despite her statement, she was told to stay put by Koji, who entered the village without setting the barrier off. Much to her dismay, she believed that Koji tricked her so he could continue the mission without her surveillance. Growing impatient with Koji not returning and being in an angry mood to kill someone, she launched a drone from her back as it could bypass Konoha's barrier without being detected, and requested it to locate and inform her of Kawaki's whereabouts before it flew off. When it found him training with Boruto, she entered the village's airspace, during which her presence became known to Ino and the Konoha Barrier Team, and launched herself towards his location using her transformed legs. Approaching the vessel, she encountered the Seventh Hokage and his two children beside him.
Delta boldly demanded Kawaki to be handed over. Kawaki confirmed her identity as an Inner from Kara to Naruto. Naruto gave instructions to Boruto and Kawaki before fighting Delta. Naruto initially outperformed her in taijutsu, but Delta began using her shinobi-ware to launch sneak attacks and absorb Naruto's Rasengan. The battle escalated as Naruto entered his Six Paths Sage Mode, but Delta was able to pin him down. Naruto tried to discern Delta's objectives, but Delta was able to see through his ruse, noticing he was already healing, and considering him to be a monster much like herself. She activated a chakra cloak of her own before continuing to fight Naruto, using his own absorbed Rasengan against him.
As Naruto began to gradually wear down his foe, realising that she couldn't beat the Hokage at this rate, Delta unleashed her ace, a destructive eye-beam that would override even the strongest of regenerative powers. While Naruto managed to dodge the lethal beams, the split-attention let Delta begin landing more solid blows. Fearing for his father's safety, Boruto recklessly launched his Vanishing Rasengan on the foe, who quickly absorbed the attack to reenergise herself. Going for a new tactic, Delta then launched her beam at Himawari, knowing that she would inevitably hit someone, whether it be her target or the Hokage acting as a human shield for his daughter. To everyone's surprise however, it was Kawaki who blocked the blast, at the cost of his right arm. Regardless, this turn of events greatly angered Delta.
Delta scolded Kawaki for damaging his body, which as the "Vessel", she considered to belong to Kara and Jigen. She believed Amado capable of healing the damage. As an enraged Naruto continues the fight with Delta, the two exchange blows until Delta hits the ground. As he approached, Delta attempted to finish him with her eye beams point-blank, but he dispersed it with a Big Ball Rasengan. Delta absorbed it, and Naruto made a bigger Rasengan, to the point her eye could no longer absorb chakra, causing it to fail and losing the connection with her drone. She attempted a physical attack, but Naruto dodged her and landed his Super-Ultra-Big Ball Rasengan on her, leaving her on the bottom of a large crater.