In search of lost memories... The clue is in "World Gourmet"!
Kasumi, a boarding house caretaker for foreigners is tasked with taking in a boy named Haru, a boy with amnesia who wandered into her yard. However, Haru's origins are a mystery, and no one, including the residents, can find any clues to his memory. So Kasumi makes a proposal:
"If we feed him different cuisines from all over the world, we may be able to find a taste of his homeland!"
―This story is a record of a boy who tastes gourmet foods from all over the world in order to regain his memory.
