Suisei's maternal grandmother is Grand Duchess Anastasia Nikolaevna of Russia who escaped the execution of the rest of the Romanov Family. In a display of cunning, she chose to remain in Sibera, as it was the last place her enemies would ever look, assuming she would flee. She married and gave birth to Suisei's mother, who she raised to speak English natively, so as to further allay suspicion, for nobody would assume a native English speaker would be part of the Romanov bloodline. After she died, the Kremlin got word that the Romanovs might still be alive and Suisei's mother fled to Japan where she married an unassuming salaryman. There she gave birth to Anemachi and Suisei. Suisei is fluent in Japanese and English. She speaks English natively from her mother and Japanese natively from her father. Suisei's newfound fame is of great concern to her mother and that is why Anemachi must always live with Suisei no matter where she goes, inclduing her most recent move to the Holohouse. She's there to keep an eye on Suisei. Her mother watches all of Suisei's streams just to make sure that Suisei never slips up and reveals her heritage.

Some examples of Suisei accidentally revealing herself include:
>Revealed she was Russian on her roommate's twitter
>Very proficient at Tetris, a Russian game loved by Russians
>Very proficient at Project Winter because it reminds her of her ancestral homeland of Sibera
>Always wears an Ushanka (Russian Fur Hat) in Among Us
>Occasionally slips and pronounces something correctly in English
Additionally, Anemachi will report back to their mother on Suisei, that is why people have seen her "talking" to stuffed animals, it's really a stuffed animal with a hidden radio inside.

Further proof
>Anemachi cannot be seperated from Suisei
https://youtu.be/duMU1DSmYDQ

>Anemachi "talks to stuffed animals" really making her reports to their mother
https://youtu.be/RWuABgihelI

>Suisei holding her own against the #2 Tetris player worldwide
https://youtu.be/5cC9NmmCbOo

>Her mother even joined her membership so she could watch those streams and make sure Suisei doesn't revel anything. Also listen to how Suisei pronounces member when she imitates her mother, thus outing them both as native English speakers.
https://youtu.be/5FiG3rfRU9U

>Suisei pronouncing fuck like a native English speaker
https://youtu.be/37IOYCj60Eg?t=4356

>Suisei acting out her desire for revenge on her family's enemies in the frozen wastelands of Sibera in Project Winter.
https://youtu.be/sJJEiG0QOBI
https://youtu.be/gNtW2SssBCo
https://youtu.be/WdaW5VwFQpw
(or: fuck it let's dig up old narratives)