NKKD-009 Warning: This is fucked up. After three years of marriage, my wife and I decided to take out a 35-year mortgage to buy a used apartment. However, we couldn't stand the noise from the asshole upstairs, Wu Maru-senpai. So, we went to protest, but h

In our third year of marriage, my wife and I decided to take out a 35-year mortgage upon my promotion to section chief. We bought this used apartment with the intention of filling it with happiness. However, there was one problem: the resident living upstairs, a man named Takeo Muramaru, who had quite the DQN appearance... One day, finally unable to bear it any longer, we went together as a couple to protest the noise issue at this DQN's room.