Who Knows the Soul of the Sea? Shina

This novel is a mixture of adventure, love and intrigue set against the backdrop of the mysterious world of the Far East. It takes us from tranquil France to the deceptive metropolis of Tokyo and describes a woman's struggle against nameless opponents, her own husband, and the past. She is pulled along by a maelstrom from which there is no escape in the end.
Shina does business with Japan and these deliveries are constantly being sabotaged. Akira, her husband, travels to Tokyo to investigate the causes. To no avail.
Shina finally wants the culprits to be found and flies to Tokyo. Two days later, she is asked to meet a stranger. She goes to the meeting place, where she learns of the connections and of her imminent death.