One Piece: So What If I Sin, Lie, and Lust? I'm Still a Good Marine - Chapter 575: Volume 4 – - 94: The Cage of Genes

Three Days of Happiness is a novel by Sugaru Miaki, also known as Fafoo. It’s a rewritten version of the story originally posted to 2ch.

The premise of the story revolves around a shop where one can sell away the remaining years of their life, and the consequences of doing so.

“I Say A Little Prayer” is a short related story which was posted along with the novel’s release. It spoils some things about the main story, but nothing major.

The Baron’s daughter, Alessandra Barrett, has worn a mask from a young age due to an injury. Many say if you were to see the face behind the mask, you would be cursed and die soon afterward. She is seen as a ghost, avoided by all who visit the baron’s home until she becomes the Duke’s wife.

No one could understand why the Duke would pick such a wife. Did he wish to die?

What would become of the girl who once hid in the shadows but now had the spotlight on her as the Duke’s masked wife?

What would everyone say if they were to learn the truth that she was in a contracted marriage with the Duke?

For He Gu, to be secretly in love is like a strong alcoholic drink. Obviously, once it flows into your system, dizziness, the loss of self-control and suffering will follow closely by, making it possible for anyone to be fatally attracted like moths to flames, and willingly endure the hardships.

While you made sure to not overdo it, I’ve become completely intoxicated…however, for every intoxicated feeling, you will inevitably wake up from it one day.

When Song Ju Han continued to act childish and recklessly destroyed He Gu’s tenderness for him, he had never imagined that the man has already been written into his destiny. Even more, he had never imagined that—the person brought to him by destiny—would one day want to escape…

Liu Duo was a young girl whose grandmother sold her to four brothers with the intent to be a bride. Unwilling, she ran away the following night, only to fall unconscious while trying to get away. Unexpectedly, however, she was reborn with the spirit of a 25 year old woman, also named Liu Duo.

- Description from Novelupdates