Soichi Isurugi

Soichi Isurugi (石動 惣一) is the father of Misora Isurugi and the owner of the café nascita. Upon finding the amnesiac Sento Kiryu, he gave him a place to stay in the basement of nascita. He is also the one responsible for creating the Sky Wall Disaster.

Character History
Ten years prior to the events of Build, Isurugi was an astronaut working with the Kiwami Project, discovering the Pandora Box on Mars, which he admits "did a number on his mind". At the ceremony back on Earth, he rushed the security guards and applied his hand to the Pandora Box, causing the Sky Wall Disaster. To relieve himself, he left the group, opening up the café nascita in Touto.

After his daughter was kidnapped by Faust, he stole the Pandora Box panels from the Touto Institute of Advanced Matter Physics to ensure their confidence. He managed to escape with Misora, as well as one of the panels, the Build Driver and an unknown number of Fullbottles; upon his return, he plastered the panel into one of nascita's basement walls.

On September 5th, he found a young amnesiac man and gave him shelter while nurturing him into Kamen Rider Build.

Personality
Soichi is an enthusiastic but laid back person who occasionally sprinkles his speech with Italian. However, when in panicked state, Soichi becomes careless.

However, hidden behind his laid back demeanor is a secretive and somewhat manipulative man, albeit restrained by his morality.

Due to his exposure to the Pandora Box, Soichi has an unconscious urge to act impulsively, explaining why he caused the Skywall Disaster.

Powers and Abilities

 * Computer Proficiency: Isurugi has some level of programming knowledge, as he was able to hack the GPS on a stolen motorcycle.
 * Matter Reshaping: Isurugi was able to manipulate a tablet computer into a rod shaped item that he used as a back scratcher.

Portrayal
Soichi is portrayed by Yasuyuki Maekawa (前川 泰之).