Connect your apps and devices with Blockchain

About us


Connect and restructure the world.

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9F, Edobori Center Building
2-1-1 Edobori Nishi-ku Osaka 550-0002 Japan

Co-Founder & CEO Fuji Takashi

When he was younger, he placed first in Japan in the Junior Olympics. After that achievement, however, he retired from the sport when he realized that beyond “first in Japan,” there was no “first in the world.” When he was 19 years old and in college, he became fascinated by the Internet and started businesses that he hoped would be global game changers. One business was “Nap Media”, Japan’s first approach to using paper napkins as a media. Another business was “pico”, the world’s first mask brand. These ventures led to the experience of having one of his businesses acquired. This and other accomplishments led to him being selected as one of Japan’s Global Shapers in their 20s, which sent him to the World Economic Forum in Davos. His growing business had the 1 billion yen net sales mark, and a stock IPO, in sight, but he worried that there were no game changing prospects beyond those marks. He resolved to re-assert his original objectives and start anew. That was when he founded SIVIRA.

Co-Founder & COO Hiro Shinohara

When he was six years old, he used a Macintosh for the first time and experienced the joy of being a programmer. He was greatly impacted at age 11 when he saw on TV the revolution that Netscape and Marc Andreessen had created. It was then that he decided to be an entrepreneur. He had the opportunity to travel to the West Coast of the U.S. and he immersed himself in software development. Then, at 19, he started his first startup. Since then, he has been involved in multiple startups in countries including Singapore, Taiwan, and the U.S. Bitcoin gave him his greatest jolt since first seeing Netscape, so he switched directions toward blockchain related ideas. He has also worked as one of the managers of He started SIVIRA in order to further the revolution surrounding blockchain.

Co-Founder & CTO Ryugo Toshihiko

In 1995, he was 15 years old when the massive Hanshin Earthquake struck the Osaka and Kobe areas. He saw that, amid the chaos, the Internet played a role in sharing information, which piqued his interest in the Internet. Since he was not able to install Windows 95 on the computer he was using, he started using FreeBSD. That led him into web development with Perl. In his student days, it was most common to approach development with Perl and CGI. However, he felt that object-oriented scripting languages had more of a future, so he started developing in PHP. After building up experience as an engineer, he struck out on his own in 2005 and started a company in Delaware, U.S.A. He implemented his own development process and made a framework for putting it to work. Later, he decided that he wanted to focus more on technology development than management, so he became the CTO at the company that Fuji was running. As an engineer, he is leading this rapidly growing company toward achieving its goals. He and his partners started SIVIRA from their belief in the necessity of blockchain and self-distributed social platforms.

Co-Founder & UX Hacker Taku Yokoyama

After entering elementary school, he studied HTML and CSS and took on projects building web content and web sites. In high school, he first saw Facebook and was struck by the UX. This made him realize that his future was not just as a web designer. After graduation, he took on projects as a full stack engineer. As he started to envision his future as a UI engineer, he decided to focus closely on that course. He later joined SIVIRA when he met its founding members.

Blockchain R&D Manager Shin Yoshida
Coming soon.
Financial Director
Certified Public Accountant
Ryo Iwasaki

After passing the CPA exam, he joined Deloitte Tohmatsu. He worked on accounting audits, financial due diligence, and supporting companies with their IPOs. After that, he participated inside the company starting projects supporting venture businesses. He helped support startups aiming to go global. After leaving Deloitte Tohmatsu, he joined SIVIRA because he agreed with the grand vision of its founders.

Growth Hacker Lionel Heemskerk
Coming soon.
Web-based software development platform.
Closed Beta Version

Connect your favorite apps, automate actions.

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Prove your love on Blockchain.

SoulGem records an entry of your love in a Blockchain.
The Blockchain technology used in SoulGem is bitcoin (not to be confused with the currency), the most widely used form of Blockchain in the world.Records made in a Blockchain cannot be deleted, so your love will persist forever.

In addition, you cannot falsify entries on Blockchain. Therefore, you can demonstrate that your dating history and that of your partner is completely true and free of falsehood.

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