"Just Masa" is a book by Boris Akunin, which tells about the background and adventures of the assistant and colleague of detective Shibata Masahiro after the alleged death of Erast Fandorin. Masa, 63, returned to Japan, and he is full of strength and determination to follow his noble Path ... A very stylish story with a Japanese flavor, where there is a place for the yakuza, and the earthquake, and the bank robbery, and the king's gold, and even a love denouement ...