The Ozawa family lives with a father and son, and their son Taro is not going to school, and Maiko, the homeroom teacher, is worried because she can't seem to find a solution. - What's more, her husband's infidelity was discovered in a pseudo-married household, and she was devastated both physically and mentally. - At that time, he and his guardian, Ozawa, discuss their concerns and before they know it, their bodies are in close contact... - The two, looking for emotional support, were huddled close together as if they would never be separated, and they felt a sense of warmth. - However, Maiko finds herself in an immoral relationship born of infidelity...