Kanako felt a strong sense of unease toward her new stepfather. Though she resolved to endure it for the sake of the family, the real reason he chose to remarry was due to Kanako's slender, petite body as his stepdaughter. Every day, her shy and reserved nature is met with aggressive "sex education" from her new dad, leaving Kanako visibly flustered and confused. However, the one who truly knew the truth behind it all was her mother.