This is a sequel to 'Sicko,' so if you have not read 'Sicko,' I would recommend doing that first. 'Sicko' involves Jade, the female main character (FMC), and her foster brother Royce, the male main character (MMC). For unknown reasons, Royce leaves when she is 15 and he is 18, and it crushes her. Four years later, he comes back, and he's hot and a biker. Wicked, the MMC of this book, is the right-hand man to Royce, and this is the backstory to his upbringing and how he and Royce met. When Wicked was younger, he and his sister Poppy were placed in a house with an abusive man. One night, that man killed his wife, which in turn Wicked kills. They are then brought in by Victor, his wife, and daughter Ruby. This is where the two books start to merge, and the story gets more developed, showing how the characters all fit together. The world-building and character development in this are phenomenal. The next book in this series is 'Antichrist,' and I am all in.