SAN-108 Invite colleagues home for a drink and the ending

"Reona" secretly met her ex-boyfriend when she was married. Her brother-in-law knew about it and blackmailed her. She cannot refuse and become obedient, and she is cornered both physically and mentally, such as irregular menstruation. Her brother-in-law's violent behavior repeated and "Leona" lost her way. However, the series of nightmares continued forever.