The castle’s Honmaru-goten Palace was closed to the public ... The interior of the palace features original Edo Period (1603-1867) paintings by the Kano school and other renowned artists.

A 400-year-old stone wall once part of Edo Castle, discovered only last year at what is now the Imperial Palace in Tokyo, is likely the castle’s oldest existing remnant ever unearthed ...

Sakai Nobunari an Elder in 'Honmaru' (or the main enclosure ... Kyoshiro, who has come back in Edo after 3 years is involved in it against his will. It's because he gets to know Lady Mihoyo ...