Just as she fell pregnant with her daughter Miku, the man she'd been seeing — the man who was supposed to become her husband — vanished. So that her daughter would never suffer for having a single mother, she worked flat out for ten years. University finished, a job, marriage: her daughter has a bright future ahead of her. And then one day, she accidentally ended up sleeping with her daughter's boyfriend. However much she loves her daughter, she couldn't control the want she'd been holding down all this time, and a current ran through her body and the pleasure left her numb.