To save her Omega royal bodyguard Eliza from toxic gas during an assassination attempt, Princess Charlotte of Aldenburg gives her an emergency mark. Pressured by court rules, Eliza, who concealed her Omega identity, resigns and leaves the palace. After fleeing, Eliza finds herself pregnant with Charlotte’s child. She lives in obscurity and gives birth to their daughter Elsa alone.
One year later, Charlotte reunites with Eliza at an equestrian competition in a neighboring country and learns about her daughter. Full of remorse, Charlotte tries to make amends. However, her ambitious cousin Victoria repeatedly schemes, spreads slander and arranges assassinations against mother and daughter to seize the royal inheritance.
Charlotte overcomes obstacles inside the royal family. She gathers evidence against Victoria’s treason while mending the emotional wounds between her and Eliza. After manhunts, escapes and confrontations, Victoria’s plots are fully exposed and she is ruined.
The King recognizes Elsa’s royal status and revises laws to accept an Omega consort. Charlotte sets aside royal pride and resolves past misunderstandings with sincerity. They hold a wedding. The whole family heals and lives happily together inside the palace.