Inheritor of the Dream (夢を継ぐ者 Yume wo Tsugu Mono) is the eighteenth episode of Ultraman Geed.
An amnesiac Kei Fukuide is assaulted by a Dada, who was in possession of a customised stolen Legionoid. Kei regains his memories and resumes his plans of serving his master Belial.
Its been weeks after Belial's destruction as Haruo still under the mood of celebration in his shop. News spread of Kei Fukuide being suspected for the murder of his former editor Joji Osumi. Meanwhile, AIB members are trying to salvage and secure Belial's Kaiju Capsules after it dispersed from his explosion. Alien Empera's capsule was retrieved shortly by another agent while Zena and Moa quickly chases Kei upon catching him in their sight. While the latter was joined by Leito (Zero) and Riku, the same alien whom Kei had killed before appeared with a customized Legionoid to hunt the Alien Sturm and avenge his fallen comrades. Zero went after the robot while Riku and Moa pursue Kei, who manages to escape with the help of a woman.
Within her workplace, the woman introduce herself as nonfiction writer Arie Ishikari. Still having no clue of who he is, Kei was briefed by Arie of his past, as well as the murder of Joji Osumi which made him as a fugitive. Arie wishes to write a book about Kei and promises to protect him even if she had done her job. Moa reveals to Riku of the Kaiju Capsules that AIB currently detained as other aliens try to breach into their headquarters in an attempt to steal them. With more cases emerge, Riku willingly gives into AIB's cooperation. As his power begins to reach its limit, Zero brought the Legionoid back to Earth, coincidentally nearby Arie's workplace. As Zero de-transforms from time limit, Legionoid open fires on Kei as he finally regains his memories and summons Zaigorg in retaliation. Riku appears and Kei declares himself to be Belial's successor, transforming into Thunder Killer to join Zaigorg in a fight against Geed.
From a safer distance, Arie watches every event including the Ultras' respective identities and Kei's true capabilities. Geed assumes Royal Mega-Master as he conclude the battle by killing Zaigorg with Jack's power and Thunder Killer with Taro's power. An injured Kei tries to attack Arie but quickly succumbs to his injures as she tended him and swear her loyalty.
- Riku: Ultra Capsule Navi! Here are today's capsules!
- Riser: Ultraman Taro!
- RE.M.: Ultraman Taro. Height: 53 meters. Weight: 55,000 tons. Even among the Ultra Brothers, he has particularly high combat ability.
- Riku: Next up is this one!
- Riser: Zaigorg!
- RE.M.: The Demonic Beast, Zaigorg. Height: 66 meters. Weight: 70,000 tons. Rumoured to transform the world into Hell.
- Riku: Be sure to watch next time!
- Riku Asakura (朝倉リク Asakura Riku)/Ultraman Geed (voice): Tatsuomi Hamada (濱田龍臣 Hamada Tatsuomi)
- Laiha Toba (鳥羽ライハ Toba Raiha): Chihiro Yamamoto (山本千尋 Yamamoto Chihiro)
- Moa Aizaki (愛崎モア Aizaki Moa): Mayu Hasegawa (長谷川眞優 Hasegawa Mayu)
- Leito Igaguri (伊賀栗レイト Igaguri Reito): Yuta Ozawa (小澤雄太 Ozawa Yūta)
- Kei Fukuide (伏井出ケイ Fukuide Kei): Kunito Watanabe (渡辺邦斗 Watanabe Kunito)
- Haruo Kume (久米 ハルヲ Kume Haruo): Tadashi Mizuno (水野 直 Mizuno Tadashi)
- Zena (ゼナ Zena): Hideyoshi Iwata (岩田栄慶 Iwata Hideyoshi)
- RE.M. (レム Remu Voice): Suzuko Mimori (三森すずこ Mimori Suzuko)
- Alien Pegassa Pega (ペガッサ星人ペガ Pegassa Seijin Pega Voice): Megumi Han (潘 めぐみ Han Megumi)
- Alien Shadow Zena (シャドー星人ゼナShintaro Asanuma (浅沼晋太郎 Asanuma Shintarō) Voice):
- Ultraman Zero (ウルトラマンゼロ Urutoraman Zero Voice): Mamoru Miyano (宮野 真守 Miyano Mamoru)
- Dada (ダダ Dada voice): Shouma Yamamoto (山本 匠馬 Yamamoto Shōma)
- Arie Ishikari (石刈 アリエ Ishikari Arie): Ryoko Kobayashi (小林 涼子 Kobayashi Ryōko)
- Man: Koji Kunishige (國重光司 Kunishige Kōji), Reimon Izumi (泉礼文 Izumi Reimon)
- Caster: Chisato Kawai (川合千里 Kawai Chisato)
- Ultraman Geed: Hideyoshi Iwata (岩田栄慶 Iwata Hideyoshi)
- Ultraman Zero: Satoru Okabe (岡部暁 Okabe Satoru)
- Pega: Satomi Maruta (丸田聡美 Maruta Satomi)
- Thunder Killer: Kazunori Yokoo (横尾和則 Yokoo Kazunori)
- Zaigorg: Yoshiki Kuwahara (桑原義樹 Kuwahara Yoshiki)
- Legionoid: Yuto Nagachi (永地悠斗 Nagachi Yūto)
- The Crunchyroll subtitles accidentally calls Taro "Ultimate Taro" during the Ultra Capsule Navi section. It is most likely a copy-paste error considering the previous Ultra showcased was Ultimate Zero.
- The article shown to Kei is strange as what it talks about has no barring to the Headline in question, as it speaks about the NATO troops fighting Taliban in Afghanistan.
- This is the first time Zero is defeat by a Legionoid, granted it was enhanced, but it is rather ironic as Zero has had battle experience with said robot.
- This marks the third time a Dada was defeat or killed by a non-Ultra, in Ultraman X, Kei, and by a Kaiju summoned by him.
- Thunder Killer and Zaigorg have similar designs, from both having a Color Timer like-item on their chest surround by veins or markings, antennae, and both with club/claw hands and on the opposide to each other, and finally being defeated by arrow-like weapons that both Ultra's use with new Weapons.
- Marks the second time Zaigorg is killed by a arrow-like weapon from the Ultra's new attained weapon.