|Planet of Origin||Earth (Bakugan Universe Reality)|
|Occupation||Brawler, High School Student|
|Guardian Bakugan||Pyrus Vanguard|
|First Appearance||Bakugan Universe: Chapter 1|
Sion Urishoyma is a Pyrus Brawler and one of the main protagonists in Bakugan Universe.
Sion is a rather rash and impulsive teenager, but can be calm and patient as times. He happens to be very friendly and easygoing, and is very popular among his peers at school because of his Brawling skills and good looks. He wants to be the greatest Brawler there ever was, and will not rest until he has the number one rank on the International Rankings. As a result, he is often seen brawling people in order to get better at brawling and even for the fun of it.
- Sion's personality mirrors that of Dan Kuso; both can be rash and impulsive at times, are popular for their Brawling skills, and want to be the best there ever was. Also, both are Pyrus Brawlers.