176cm, 21 years old

Known as the daughter of Count Siones of the Herion Empire. In reality, he is a man.

• The frail former Countess Sarah Siones treated Rubel as a girl to prepare for a future where she might be gone, after discovering Count Siones' affair and illegitimate child with Alice.
• Rubel has spent his life crossdressing to hide his gender and escape the threats of Countess Alice Siones, who married Robert Siones after Sarah's death.
• While Count Robert Siones remains indifferent, Countess Alice Siones and her son Jerry Siones torment Rubel.
• Rubel has a half-brother, Jerry, who is one year older. Jerry was illegitimate but became the heir after Alice's marriage. Rubel's own marriage is currently ignored in favor of finding a bride for Jerry.
• He is deeply scarred by his family situation and the need to hide his identity.
• He enjoys horseback riding.
• He secretly goes out to learn swordsmanship from Mori, his mother Sarah Siones' former knight.
• He is tall with a haughty, beautiful face and a quiet personality.
• His mysterious image makes him popular with both men and women, earning him the title 'Black Rose of high society'.