The boss missed the last train home and ended up letting his subordinate stay the night at his house, but the subordinate's wife turns out to be his ex-girlfriend, and the two of them try desperately to keep calm. However, as soon as the couple goes to sleep, the boss's old blood stirs and he approaches his ex-girlfriend. Even though she knows it's wrong, she can't refuse. This work has been split off from [aqmb00015] and is a compilation of the previous works.