Ideas by: Me, @rhipuyo, @cheetahrush, and @lazulikin
Big is Blaze’s Long Lost Older Brother
-Big and Blaze are siblings and are children of the King and Queen
-Big didn't get his fire powers when he was with them
-Big did not come out as the perfect son they wanted
-The parents neglected Big and abandoned him in Sonic's Dimension using the Sol Emeralds
-Big bumped his head near the time he got abandoned and forget everything about his family.
-They treated Blaze like the perfect daughter
There was a King and a Queen in Blaze’s Dimension. Oxi and Pyre. Their firstborn was a boy they dubbed Sear. Sear is the one we know as Big today. Everyone in the family before had amazing fire powers and children would show the first sign of these powers before they even hit one year of age. Big, however, never showed those signs. He didn’t have powers, or at least he didn’t right then. Big was also known to them as a "strange child." He was more interested in aquatic life than most other kids his age. He also wanted to play in the dirt and play very wildly. This was unheard of in the royal family and his parents did not like it one bit.
When Big turned 4, Oxi and Pyre had another child and named her Blaze. She did show signs of having fire powers and treated Blaze as the perfect daughter. This caused them to show so much neglect to “Sear” to the point where they used the Sol Emeralds to abandon “Sear” to Sonic’s Dimension when he turned 5. Sear bumped his head on arrival and forgot everything he knew about his family and life beforehand. The only way he was able to survive was due to a newly found ability he had of breathing fire.
Back in Blaze’s Dimension, the King and Queen soon went into hiding with Blaze because the people found out that Sear, the only one in their family without fire powers, went missing. They went off the radar for 5 years. Not too long after Blaze turned 10, they were found. The King and Queen were sent to life in prison for child neglect and possible murder. Before they were taken away, they told Blaze that she had to protect the Sol Emeralds no matter what because they didn’t want there to be any kind of true evidence or something for their crimes and also because the Sol Emeralds have been passed down the family line and only the royal families know of its true powers.
Blaze came out of hiding and was still the princess but kept the Sol Emeralds a secret still. The kingdom still sees Blaze as the princess in power but does not like to interact with her because she is the daughter of the people who got rid of one of their children. Meaning that Blaze has been alone since she was 10, guarding the Sol Emeralds.
-Blaze was too young to remember Big before he was abandoned.
-However, she does know that her parents abandoned a child and were put in jail for it but don’t know who the child was or how it happened.
-None of Big’s friends now know that he has the ability to breathe fire. With his incredible strength, he doesn’t have a use for it in battle.