|This article is about a/an kaijin in Kamen Rider OOO.|
The Ei-Sai Yummy (エイサイヤミー Ei Sai Yamī) is a sting ray Yummy augmented with the feature of a rhinoceros that Kazari, absorbing Gamel's two Core Medals prior, created using the desires of Yumi Sakura (佐倉 優美 Sakura Yumi, portrayed by Erena), a researcher for the Beauty Marine Lab (ビューティーマリンラボ Byūtī Marin Rabo) cosmetics company and an old friend of Akira Date. Though Kazari's plan was a failure at first, the Yummy egg holding the Ei-Sai Yummy manages to talk Yumi into succumbing to her desire of being more beautiful than her younger sister Rei. As she takes him with her, she comes across Eiji and Ankh and the egg sends out several small Ei Yummy (エイヤミー（小） Ei Yamī (Shō)) to attack them and hold them at bay, allowing her to become more beautiful. The egg eventually hatches into his complete Yummy form to hold Rei captive so Yumi can assume control of Beauty Marine Lab before Date intervenes and takes the Cell Medals that make up the Ei-Sai Yummy's rhinoceros attributes with his upgraded Drill Arm. This causes the large Ei Yummy to evolve further into the giant devilray-like Itomakiei Yummy (イトマキエイヤミー Itomakiei Yamī), which is only finally destroyed by Kamen Rider OOO Shauta Combo's Octo Banish. In addition to egg laying, it was also given swimming capabilities and reinforced skin.
The Ei-Sai Yummy in all his forms is voiced by Kōsuke Toriumi (鳥海 浩輔 Toriumi Kōsuke).
- The Ei-Sai Yummy is one of three Yummy (the others being Gorila and Sou) whose motif corresponds with one of Gamel's three Core Medals which are used by Kamen Rider OOO to assume Sagohzo Combo.
- TV Asahi's page on the Ei Yummy (Small)
- TV Asahi's page on the Ei-Sai Yummy
- TV Asahi's page on the Itomakiei Yummy
|Kamen Rider OOO|
|Eiji Hino - Akira Date - Shintaro Goto|
|Kougami Foundation and Allies|
|Kougami Foundation: Kousei Kougami - Erika Satonaka|
|Cous Coussier: Hina Izumi - Chiyoko Shiraishi - Shingo Izumi|
|Greeed: Kiyoto Maki - Uva - Kazari - Gamel - Mezool - Ankh (Lost)|
|Yummy: Waste Yummies - White Yummy - Kamakiri Yummy - Otoshibumi Yummy - Neko Yummy - Piranha Yummy - Bison Yummy - Same Yummy - Ageha Yummy - Siam-Neko Yummy - Rikugame Yummy - Kabuto Yummy - Kuwagata Yummy - Lion-Kurage Yummy - Batta Yummy - Ei-Sai Yummy - Omu Yummy - Ika-Jaguar Yummy - Shachi-Panda Yummy - Kuro Ageha Yummy - Pteranodon Yummy - Fukurō Yummy - Unicorn Yummy - Uni-Armadillo Yummy - Shamo Yummy - Ankylosaurus Yummy - Hagetaka Yummy - Nue Yummy|
|Other Characters: Gara - Kamen Rider Fourze - Kamen Rider Double - Kamen Rider Wizard - Kamen Rider Aqua - Kamen Rider Poseidon|
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