Mineta Chisato is a homeless 20-year-old girl who lost her mother at a young age due to sickness. Her dad left her a huge debt, and that’s why she lived her life so far trying to escape the debt collectors. One day, she meets a man named Shinzo when she was chased by the collectors. He saved her, and told her he would pay everything if she married him. At his death, Chisato is sent to his house (more like a castle to me) and has to take care of the 6 sons Shinzo has adopted. However, all six of them, though all good looking, all have strange personalities. Will she be able to live under one roof in order to save herself from the gigantic debt?