The interior is largely divided into 4 rooms and is particularly well-known for the sliding screens of its south 'Peony Room' which are adorned with paintings of peony flowers and those of the north 'Japanese Apricot Room' which are decorated with paintings of Japanese apricot trees with red blossoms (both by Sanraku KANO) (the original sliding screen paintings have been put into storage and the ones currently on display are reproductions).
内部は大きく4室に分かれ、中でも南側の「牡丹の間」の牡丹図と北側の「紅梅の間」の紅梅図の襖絵（ともに狩野山楽筆）は名高い（襖絵のオリジナルは収蔵庫に収められ、現在ここにある襖絵は複製である）。