Later, after administered by Hazard Trigger, he became Stag Hazard Smash. Aoba is the most level-headed of the Hokuto Three Crows, and seemingly the most selfish, both by a small margin. He appears to get to the point of his missions quicker than the others, but still indulges in petty quarrels such as arguing over who would take Sento Kiryu and Ryuga Banjou's Fullbottles. According to Kazumi, before the war, Aoba was one who cared about his friends and would cry for even a complete stranger. Aoba was originally a farm worker in Hokuto, employed by Kazumi Sawatari.
Publication Information
- Build : Syuuya Aikawa
- Japanese : 相河 修也
- Version : Kamen Rider Build
- Alter Ego : Aoba
- Affiliation : Hokuto Three Crows
- Gender : Male
- Origin : Earth (World of Build)
- Season : Kamen Rider Build
- First Appeareance : Kamen Rider Build Episode 16 : The Weaponry Hero
- Last Appeareance : Kamen Rider Build Episode 21 : The Unstoppable Hazard
- Number of Appeareance : 6 (Build)
- Potrayer : Tateto Serizawa
- Main View : Full Episodes
After the Skywall Disaster, Hokuto's farm land was rendered unsuitable for crops. Sawatari spent all of his savings to continue providing for his employees and their families, and volunteered himself for Faust's experiments when his funds were depleted. Feeling indebted to Sawatari, Aoba volunteered himself as well, becoming a Hard Smash in the process. When Hokuto Prime Minister Yoshiko Tajimi declared war on Touto, Aoba was part of the advance guard with Kiba and Akaba.
As Kiba watched a live stream of inferior Smash being defeated by Kamen Rider Build, Aoba attributed their weakness to their lack of awareness. Aoba and the others later tracked down Sento Kiryu and Ryuga Banjou, and transformed into their Hard Smash forms. After successfully knocking them out of their transformations, Akaba demanded that they hand over their Fullbottles, prompting Aoba and Kiba to argue with him over who should get said Fullbottles.
By the time they had pulled themselves together, Sento and Ryuga had absconded. Later, they found Sento consoling Misora Isurugi as she lamented her role in allowing evil to wage war, and told Sento to hand over his Fullbottles. This time, Sento gave them a challenge with a determination he gained from Misora, using RabbitTank Sparkling Form.
However, Akaba, Aoba, and Kiba still quickly gained the upper hand, until Ryuga appeared with the Sclash Driver and transformed into Kamen Rider Cross-Z Charge. Ryuga and Sento easily defeated them, causing them to drop the Phoenix, Robot, Wolf, Smapho, Kuma, and Televi Fullbottles. Kazumi Sawatari arrived shortly after to challenge Sento and Ryuga.
Form
Stag Hard Smash
- Main Articles : Stag Hard Smash
- Origin : Earth (World Of Build)
- Version : Kamen Rider Build
- Type : Smash
- Alter Ego : Syuuya Aikawa
- Height : 205.2 cm
- Weight : 124.4 kg
- Maximum Speed :
- Appearances : Build Episodes 16-19
- Aoba's transformation into the Stag Hard Smash by injecting the Kuwagata Fullbottle into his arm, his Smash weapon is also a pair of swords, The Stag Hard Smash's Rapture Scissors weapons resemble that of the Scissor Blades.
- The Stag Hard Smash is armed with the pair of sword-like Rapture Scissors.
- The Stag Hard Smash can move at super speed.
Kuwagata Fullbottle
- Kuwagata Fullbottle
- Used by Aoba to transform into the Stag Hard Smash. Later used by Kyoichi Shimizu to transform into the Stag Lost Smash.
- Main Articles : Stag Hazard Smash
- Origin : Earth (World Of Build)
- Version : Kamen Rider Build
- Type : Smash
- Alter Ego : Syuuya Aikawa
- Height : 205.2 cm
- Weight : 124.4 kg
- Maximum Speed :
- Appearances : Build Episodes 19-21
- After being administered with the Hazard Trigger's energy, Aoba can now transform into the Stag Hazard Smash with the Kuwagata Fullbottle.
- The Stag Hazard Smash is armed with the pair of sword-like Rapture Scissors.
- The Stag Hazard Smash can move at super speed.
Kuwagata Fullbottle
- Kuwagata Fullbottle
- Used by Aoba to transform into the Stag Hazard Smash.
- Main Articles : Imitation Aoba / Stag Lost Smash
- Origin : Earth (World Of Build)
- Version : Kamen Rider Build
- Type : Clone
- Created by : Evolto
- Height : 205.2 cm
- Weight : 124.4 kg
- Appearances : Build Episodes 46
- This mimicry of Aoba was created by Evolto using his own DNA in his quest to defeat Kamen Rider Grease and defend Pandora Tower.
Kuwagata Lost Fullbottle
- Kuwagata Lost Fullbottle
- Used by Aoba to transform into the Stag Lost Smash.
