Kenichi comes from a single-parent household. A woman named Yuna, who had been an employee of his father's company, married into their family. One evening, Kenichi saw Yuna being scolded by his father for wetting the sheets. Kenichi, who knew nothing about sex, thought it was bed-wetting. However, later on, he caught Yuna and his father having sex and learned about "squirting"...
