Grandpa fetish's participation in DANDY is a so-called "double A-side" that contains two completely different works. The first work is about an old man who is still crazy about big breasts even in his old age, and plays various pranks on a masseuse played by Haruki Sato, while pretending to be senile. The second work is a documentary project in which an old man who made his debut as an adult actor at the age of 73 plays a "little naughty old man" on a busty caregiver he has a crush on.