[Mosaic removed] Aishina has been married to her husband for 7 years. Her husband is so busy that they have almost no night life or conversation. When Aishichi invites her husband to her workout, he suggests she go to a swimming class where her friend Ichijo is the coach. She was happy, but her husband retired from her swimming lessons after a few lessons. It became standard for her to tell her coach Ichijo about her husband's complaints. Then, on the night of her wedding anniversary, Aishina is shocked when her busy husband abruptly cancels their dinner plans, and she naturally imagines Ichijo's face, and the next thing she knows, she goes to the pool. And...