This is a set of haniwa figurines.
Haniwa (埴輪) is a collective term for the unglazed earthenware cylinders and hollow sculptures that decorated the surface of the great mounded tombs (kofun) built for the Japanese elite during the fourth to seventh centuries. Haniwa (埴輪) statues...
It's probably a souvenir set bought at a museum. I believe the originals are displayed at the Ueno National Museum.