"Prosto Masa" -- ėto Masakhiro Sibata odin, bez Fandorina. Osirotevshiĭ pomoshchnik velikogo syshchika vozvrashchaetsi︠a︡ v rodnui︠u︡ I︠A︡ponii︠u︡, kotorai︠a︡ ochenʹ silʹno izmenilasʹ za vremi︠a︡ stranstviĭ svoego bludnogo syna - i ostalasʹ vechno neizmennoĭ. Otkryvshego detektivnoe agentstvo Masu ozhidai︠u︡t neveroi︠a︡tnye potri︠a︡senii︠a︡, neveroi︠a︡tnye prikli︠u︡chenii︠a︡, neveroi︠a︡tnye zhenshchiny i neveroi︠a︡tnye otkrytii︠a︡. "Just Masa" is Masahiro Shibata alone, without Fandorin. The orphaned assistant of the great detective returns to his native Japan, which has changed very much during the wanderings of its prodigal son - and has remained forever unchanged. Incredible shocks, incredible adventures, incredible women and incredible discoveries await Masu, who opens a detective agency.