Jooheika (Jitsuwa Joso Danshi) no Kawaii Kanaria

Summary

In the flower kingdom of Bloom, only women can inherit the throne. Sitting on that throne is the beautiful Queen Sieglinde - but in reality, she is a man! In order to protect her country, she must lie and act as queen. The voice of Sieglinde is his foster sister and only person who understands her, the lady-in-waiting, Erna. Since he cannot speak, Erna acts as his "voice," and the two share a secret - but...? "Don't you think you have an obligation to accept me as a man?" The love romance between these two people who harbor a secret that could shake the country begins!