The Villainess Is Adored by the Prince of the Neighbor Kingdom

My name is Tiararose Lapis Clementille.
After tomorrow's graduation party, I was supposed to complete my bridal training, marry His Highness Hartknights, crown prince of the Kingdom of Lapis-Lazuli, and eventually become queen... or so I believed.

But then, Tiararose suddenly remembers something.

She recalls her past life, when she was obsessed with the otome game "Lapis Lazuli Ring." And she realizes that she has been reincarnated within that very game as the snide, meddlesome "villainess" who always gets in the heroine's way.

If the heroine succeeds in winning over Hartknights, then all that awaits Tiararose is a single, humiliating condemnation event.

Yet in the midst of that crisis, the crown prince of a neighboring nation, Aquasteed, appears before her and boldly asks:
"Lady Tiararose, will you marry me?"

A sudden proposal?!
And Aquasteed happens to be the main romance target of the game's sequel, a route she never had the chance to play in her past life.
Will Tiararose be able to seize a happy ending for herself?
Thus begins the classic, pampering-filled "villainess" love story!