Sayaka Minami works as a designer for a company. She is 30-years-old, single and has not had any love experience due to her 15 year unrequited love for Ryosuke Sagisawa. They have been friends since they were kids. One day, Sayaka wakes up and a strange man is in front of her. She panics and the man introduces herself as Shohei Machida. He works as a salesman at the same company as Sayaka. He tells her that they are in a relationship and live together. Sayaka lost her memory for 3 months.

Azusa Akiyama is top of her class, only daughter of a supermarket manager in Los Angeles. Kouhei Takamoto is her classmate, a rough and tumble guitarist for the band Cherry Boys. One day after school, they crash into each other, and fallen electrical lines cause them to switch bodies.

After the breakdown of the old government, and with it the First Republic, Italy changed for good in 1994. Spinster Leo is all too aware of this. He pushed hard to see Berlusconi get elected Prime Minister. He knows it's not easy to win power, but holding on to it verges on the impossible. By the same token, it seems equally impossible for populist politician Pietro to change. Even now that he has an office at the Prime Minister's premises in Rome, he still can't cast off his old bad habits. Nor can he forget the only woman he has ever loved. A former TV starlet now turned politician and Congresswoman, Veronica has to decide who the man of her life is going to be. She has realized she no longer wants to be just a woman on the arm of powerful men. It is the start of her own push for power.