The castle was constructed by Toyotomi Hideyoshi, at the time a minor retainer of Oda Nobunaga, while they were pressing the Siege of Inabayama Castle in the mid-16th century. "The work of building at Sunomata was done by a band of adventurers under the direction of a local robber baron named Hachisuka. '' Hideyoshi used pre-constructed sections to put up the fortress and it was finished so quickly that it gave the impression that it was done overnight, although the work took several days to complete. Hideyoshi 's success with the construction of this castle greatly raised his prestige and standing with Nobunaga, and marked the start of his rise to fame. The "castle '' was more of a wooden walled fortress, with simple watchtowers, wooden palisades, and dry moats. In reality, it was more of a border fort than a full sized castle, and was intended to intimidate, surprise and demoralize the enemy.
who built the castle in just one day
Toyotomi Hideyoshi