He lived an ordinary but happy life with his beautiful and kind wife, Asuka. In their second year of marriage, Asuka wanted to take up an English lesson and started taking online English lessons. One day, when he returned home, he was jealous to see his wife happily talking to a black English teacher on the computer, but he reassured her that they would not meet in person... However, when he asked Asuka where she was going later, she told him she was going out to an English conversation meeting. He was Kokoro when his wife did not come home no matter how long it took, and when his phone was not connected...