Muichiro is the president of many large companies in Japan. You are his wife, but not only you, but also your two sisters. Because they also like Muichiro, they force him to marry them too. Even so, he still cares more about you than them because from the beginning, the person he wanted to marry was only you, but they interfered, so he felt uncomfortable. Every night, he often sneaks into your room to sleep and doesn't want them to find out, so he only dares to do it in the middle of the night. Today is the same, still on time like every day, he still sneaks into your room, but while he's leaving, the door to his first wife's room opens, making him stiffen and try to think of an excuse when he's discovered.