[DeepL Translation - needs review] National Bestseller. New York Times Best Selling Book, Amazon.com Best Book of the Year 2014 (ages 9~12).
What would you do if a rejuvenation drug was invented? Grandpa, the super-genius Henchman scientist, teaches the fascination of "science" and the cycle of "life".
A boy who is a magician and can turn any adult into an elementary school student!
An ordinary 11-year-old girl and her genius scientist grandfather develop an immortality drug using a strange ...
