A husband who works for a foreign company is going to be posted overseas for six months. His wife, who has a serious and quiet personality, also works as the accounting officer for the apartment complex's residents' association. The husband and his wife, who he left behind in Japan, use a video chat app to see each other's faces and keep in touch. But one day, during a video call with his wife, the somewhat annoying, bossy neighbor who lives next door flashes in the background... While the husband is posted overseas, the quiet wife becomes a submissive sex slave for the big-dick man in the neighborhood...