She was a beautiful, busty, and highly capable female colleague at the same company. In contrast, I was a clumsy employee. However, for some reason, we became a one-day boyfriend-girlfriend! Faced with pressure from her parents to "get married quickly and let us see our grandchildren!", Riho lied and said she had a fiancé. I accepted the role of her boyfriend for a day, visited her house, and received a very warm welcome. Her parents tried to bridge the gap between us, letting us shower and sleep together, and eventually…