Shin Darkness

At the beginning of the Showa era, just before Japan headed for the war, the traveling entertainers Hanabusa and his wife, the head of the Brahmumi, who was a patron, would keep a secret actress and bookmark for a big actress. The father-in-law has a desire for a beautiful bookmark, and the two drown in an obscene relationship. Eventually, the Pacific War began, and Shiori was called with his father-in-law to a send-off party for the expedition of Takashi's son, Takashi. It was.

(from mangaupdates)