She's an "unwanted bride", but she will do anything for her first and only love, Keith, to smile and be happy...

Tinaria, an unfortunate bride who was sent to an enemy country as a hostage after the defeat of her country, Lidea.
The people are momentarily fascinated by the beautiful bride who becomes the wife of the Crown Prince, but then they remember Lidea's atrocious behavior and turn to hatred.
Tinaria, on the other hand, has been single-mindedly devoted to the Crown Prince, holding on to precious memories from her childhood.
Although she was born a princess, she was shunned by her family and treated as little more than a servant, but he was the first person to smile at her...
But when her husband, Keesfalt, coldly tells her that he has a lover... everything starts to go downhill.
「望まれぬ花嫁」だけれど、初恋のキース様がただ笑って幸せになってくれるなら、なんだって出来るーー。

自国リデアが敗戦し、人質として敵国へ送られた不遇な花嫁・ティナーリア。
皇太子の妻となる美しき花嫁に国民は一瞬魅了されるが、リデアの非道な行いを思い出し憎しみへと変わる。
一方、ティナ―リアは幼い頃の大切な思い出を胸に、皇太子を一途に想い続けていた。
王女として生まれながら家族に疎まれ使用人以下の扱いを受けていた彼女に、初めて笑いかけてくれた人だからーー…。
しかし夫となるキースファルトは彼女に「恋人がいる」と冷たく言い放ってーー？