[Machine Translation] Summer, 1998--My ( 40 ) and my girlfriend ( 17 )'s youth begins. A time-slip to the days of youth for a company employee of around 40 years old! He is a high school boy with a spunky body! But inside, he is a complete uncle.... A nostalgic love story about a time-traveling uncle...or "Uncle Tokigake" and a high school girl who loves his uncle-like appearance.