As the only daughter of the tenth generation of the Adrian family, Rilla Adrian was strictly required to grow up according to the standards of an heir, but when she was fourteen, she learned that she had a fiancé.
This fiancé has never passed the exam and can even fall flat when walking. He is a typical loser.
But this kind of person is the future heir of Vongola.
So Ruila decided to take a preemptive strike, get close to him, and control him, so that the marriage contract would not become an existence that would affect her in the future.
Her plan was going perfectly, until one day, her childhood sweetheart, who had been dependent on each other for many years, knelt down and swore loyalty to this loser.
At that moment, she swore in her heart that she would kill this good-for-nothing fiancé.
No matter what the cost.
This article is written in the first person of the heroine.
The general summary is that the heroine who was originally a black heart lotus went completely crazy and black because her childhood sweetheart had other important friends.
"If I could go back in time, I would not come to Japan. In that case, Hayato would not come here, would not know Sawada Tsunayoshi, and would not swear allegiance to him."
"We are obviously only loyal to each other, we are obviously sworn to protect each other, and we are obviously the most important people to each other."
"But from now on, my Hayato no longer belongs to me alone."
"I will definitely kill Sawada Tsunayoshi, definitely. At any cost."
Concept: The growth of the heroine who is not true, kind or beautiful