Haruki Natsukawa

Haruki is polite and a natural-born athlete. He faces everything head-on and has an extremely strong sense of justice. Although he holds conflicting ideas about "lives to be protected" and "beings to be killed", he continues to move forward while fighting together with Ultraman Z.

When Haruki was still in his elementary school years, Giestron attacked at his hometown for some reason. His father went off to help other people, but never came back and lost his life in the process, leaving Haruki's mother to raise the boy by herself. The incident haunts Haruki to this day.

In 2015, Haruki was one of the many citizens to witness the fight between Sevenger and Namegon. The event inspired him to join GAFJ and eventually elevating into the ranks of STORAGE.

Haruki's first outing as Sevenger's pilot is during the fight with Jirahs in 2019. He would later went on to participate in STORAGE's various missions, either as a pilot or as a field officer.

Haruki was eventually employed at STORAGE, and is the latest addition to the team. While assigned to pilot Sevenger, Haruki was killed in a battle against an extraterrestrial monster, but Ultraman Z arrived and bonded with Haruki to revive him, after which they both defeated the monster.

Riku entrusts the Earth to Haruki Haruki met with Riku Asakura, who chased down Gillvalis to Earth, cooperating with him to defeat it. After the battle, Riku explained who he was and that he was investigating the Devil Splinters, which Z never told Haruki about.

Later on, Haruki went to rescue Riku when he was abducted by the Valis Raiders under Celebro/Shinya Kaburagi's control, to extract the Belial Factor from him and create the Belial Medal, allowing the villain to transform into various Belial Fusion Monsters. After defeating them with the help of Ultraman Zero, Haruki sent Riku off, as he went to fight other monsters rampaging throughout space because of the Devil Splinters, and made a promise between each other to continue to protect the Earth.

Red King A appeared while Haruki went back to his hometown on the anniversary of his father's death. He fought Red King as Ultraman Z and killed it, before Red King B appeared as well. Haruki realized that they were simply protecting their egg from human activities, and suffered from guilt from his previous killings as a result, having been reminded of his own father's deeds. He protected Red King B and its egg from King Joe STORAGE Custom's Pedanium Particle Cannon and allowed the monster to retreat underground.

Still being affected by his trauma, Haruki was also hesitant to fight against Grigio Raiden, when he saw it crying in pain from being modified into a biological weapon. This causes him to lose his fighting spirit and be defeated by the monster twice, while Yoko killed it using King Joe.

When a Kanegon showed up during Haruki's night shift and ate the Ultra Medals, Haruki had to tell Kanegon about the Ultra Medals for each of his forms in order to get them back before they were digested. In the process, Haruki explained his conflicted feelings to Kanegon, allowing Z to finally understand Haruki's internal turmoil.

Following the battle against Grigio Raiden, the members of STORAGE had a party to celebrate King Joe STORAGE Custom's victory, with Haruki wishing he could travel back in time to eat Bako's tuna again. However, the party was interrupted by Bullton attacking. When Haruki attempted to board Windom, he kept being sent back in time due to his subconscious desire to eat the tuna again.

Yoko telling Haruki what she had learned about the properties of the fourth dimension caused Haruki to try to focus on boarding Windom, but his subconscious instead sent him back in time to when his father was alive. This in turn allowed Haruki to ask his father for advice, finally restoring Haruki's to fight as one with Z while remembering the ones he was forced to kill.

Transforming into Z, Haruki and Z used all three of their forms in the ensuing battle, ultimately using Beta Smash's Energy Rope to send Bullton flying before changing into Alpha Edge and finishing it off with the M78 Style Shining Tornado Slash.