Raised by a single mother who struggled to make ends meet, Jiyuu saw her mother remarry and live happily with their new family. However, his mother suddenly passed away from a heart attack, leaving both Jiyuu and his stepfather in deep sorrow. One day, Jiyuu discovered his mother's diary and was shocked by what he read. It detailed an unimaginable, abnormal relationship between his stepfather and mother. 'Did you see that?' Jiyuu suddenly felt someone behind him; it was his stepfather. 'You're going to be my slave● too, Jiyuu.' The peaceful days came to an end...
