Over a million years ago, the first human contracted with the first Spirit. Ever since then, Spirit use has become commonplace. Humans used Spirits to carry items and start fires. Eventually, even start wars. Thousands upon thousands of years past and one day, one human did the impossible. He transcended his mortality and ascended to the realm above. In the present day, the Frie Clan was once a great clan of the Himmel empire. However, a devastating battle ten years ago crippled the clan and their numbers dwindled. To make up for their loss, the upper echelons decided to adopt young orphans and nurture them to become a future pillar of the weakened clan. Shin was one of those orphans. Although picked up by the Frie Clan, not all is smooth sailing for Shin and the other orphans...
Arthur, once a successful and rich businessman, was given a second chance in another world. He was tortured for months by men his wife hired and, now... he was offered a new beginning but it wasn't what he wished for. He was met with the unexpected when he found himself to be a minuscule entity known as a Parasite.
Laura died when she was a baby. Out of desperation, her parents agreed on a deal with the mysterious couple to bring her back to life. Her family left their village and hide in a far away place… with no intention of honoring the deal. Twenty years later. Mysterious black hooded cape men descended into their mansion. They hurt her father and abducted her sister, claiming that they're fulfilling the deal that took place a long time ago. Her sister can only be returned to her family ten days later, in one condition, she won't leave their town. To protect Laura, her father entered another deal to marry her to the most notorious womanizing bachelor in the next town. The groom was the son of a powerful family, he has a questionable attitude and lacking in the looks department. Then she met the 'other' brother. He's handsome as hell and mysterious in so many ways, her heart beats crazily for him. And yet… he turns out to be something not human. Her peaceful life descended into chaos, and so the story begins.