The reconstruction is not accurate, as no plans or illustrations of the original Kiyosu Castle have survived, and the reconstruction is based on the donjon of Inuyama Castle as being representative of the period. Inside the structure is a local history museum, with displays of arms and armor.
The reconstruction of Kiyosu Castle is flawed because there are no plans or illustrations to guide it. It's based on the assumption that the Inuyama Castle keep, from the same period, accurately represents the style of the original Kiyosu Castle. The museum within the reconstructed castle displays historical weapons and armor.