Public vs Private Knowledge
Cereza is the only child of the Dragos family, a rarity among the founding families as they usually even have branch families. However, the Dragos family has always been known to only have one child
The Dragos family is the only founding family able to directly communicate with the Wytchwood. They have been referred to as Oracles, Seers, etc. It is why even if a Dragos is not Champion, they are head of the Families Council which oversees the region as a whole save for matters that include the gyms.
Cereza is the first proper Professor that Cthonia has ever had. When the Founding Families originally fled to the region, they did so for safety and sanctuary which they found. Their knowledge about Pokemon came from simply living with them and Reza is the first to have gotten a proper education
Prior to returning home, Cereza gained a reputation within the regions she went as undefeatable, having never lost a match. Others saw her as cold, distant, and an unobtainable goal. Such became more true when she seemed to breeze through the Gym Challenge of her own home
Cereza was missing from age six to age fourteen. Her whereabouts were unknown and she came out of seemingly nowhere when she returned
She travels often between matches to try and introduce Cthonia to the wider world, attending conferences, parties, anything that she can in order to get the word out.
With the region open, she also often throws charity events and other parties within Castle Dragos like her mother used to. This is, again, to invite people to the capital and allow them to experience more of the place she calls home
Cereza was essentially kidnapped by her father and taken to Kalos. She spent most of her childhood after her mother's mysterious "disappearance" locked in a lab without contact from anyone except for her father
Her mother's "disappearance" was actually the result of her father poisoning her and hiding her body. The reason for this being that he wanted to take Cereza from Cthonia to see what exactly constituted the connection between Dragos and Wytchwood. Answers he would not get due to her running away
Cereza has met and often visits the legendary Pokemon of Cthonia. Due to their statuses as the protectors of the Wytchwood and hers as the head of the Dragos family, they communicate rather often
She has extremely bad anxiety and ptsd due to her time being locked in her father's lab. Seeing someone for these has never crossed her mind and she presents a rather good front to keep her people from worrying over her.
Cereza is the one who pushed the most for a secondary Champion seat. Even if nobody's beaten her before, she thought having a seat specifically for foreigners who tried the gym challenge would be another good way to help boost the region's appeal
Cereza nearly died her first time within Typhon. Not because of the Pokemon, but because of the overwhelming pressure that came from finally being home. Between the whispers of the wood and the sudden connection, she collapsed and was unable to wake up for several days. Several years of information, longing, and reunion flowed through her and it was only because of the legendary Pokemon that she was able to survive. Despite this, she's never been afraid of Typhon or the Wytchwood - she only views it as home.
Despite having been a founding family who fleed to Cthonia, the Dragos family is the only one to trace their roots directly back to the region. This is why they have a unique connection to the Wytchwood.
will update this as time goes on / as things are thought of mwah <3