Bullied by his boss, worked around the clock, he's nothing more than a corporate drone. All it takes is a zombie outbreak for him to finally feel alive!
University students Ryoko and Akane get lost on a mountain road on their way home from a hike. They finally reach a bus stop, but there is no sign of a bus coming. Furthermore, Ryoko has an injured leg, and Akane's boyfriend is at a drinking party and cannot come to pick her up. The two decided to hitchhike out of the goodness of their hearts. It seemed reckless deep in the mountains, but as luck would have it, a camper pulled up. From the driver's seat...
Ninomiya Sayuri was an arrogant lady from a wealthy family during the bubble period. However, the bubble eventually burst and she is now a lonely middle-aged homeless person. One day, Sayuri came across a book "Silver Plan Recommendations" and learned that "there are only 3 important things in life". Later, a bad teenager threw a stone at Sayuri and she wakes up finding herself back as a high school student. Sayuri decides to take the opportunity and redo her high school life according to the Silver Plan.
