Sawada Gentaro 65 years. I'm retired life. I crave are lamented alienated from their families to live together. "What's that Nikki had to take a year earnestly," and "I want to return to when I was young again." At such time, succeeded in Hisako beauty of the town pharmacist make the "Again" rejuvenation medicine. Gentaro who took the wrong cold medicine and the "Again" is 15-16 years old boy rejuvenate overnight, regain strength and vigor effervescent barrel. Gentaro great glee that is enrolled in the local high school sunset hill months.