Wife in Mourning: Pubic-Shaved Rope Slave

This really isn't my thing, I'm not a fan of bondage or S&M but the synopsis intrigued me. The direction isn't anything special and there is no soundtrack to speak of, add to that the fact that nearly all the characters are underdeveloped and you'd think that this was a waste of time. However, the main female character really held my attention. The main male protagonist starts to have some depth after the halfway point but he still never piqued my interest the character of Kazumi did.