Couple's breakdown, sadistic neighbor leads to depravity, young wife sexually disciplined, NTR forced oral sex hell, Nanase Hina APNS-171

The young woman marries her former office boss. Although not wealthy, she lives a happy life with her husband, who is significantly older than her. After finally saving enough money, they move to a more spacious apartment, only to discover that their neighbors are from a yakuza organization…