"Diamond Is Unbreakable"@en . . "The Nijimura Brothers"@en . . "Koichi Hirose (Echoes)(\u5E83\u702C\u5EB7\u4E00(\u30A8\u30B3\u30FC\u30BA)Hirose K\u014Dichi (Ek\u014Dzu)) is the fourth story arc in Diamond Is Unbreakable. It narrates the misadventures of Koichi who encounters the extortioner Tamami Kobayashi and Koichi's development of Echoes."@en . . . "Koichi Hirose (Echoes)(\u5E83\u702C\u5EB7\u4E00(\u30A8\u30B3\u30FC\u30BA)Hirose K\u014Dichi (Ek\u014Dzu)) is the fourth story arc in Diamond Is Unbreakable. It narrates the misadventures of Koichi who encounters the extortioner Tamami Kobayashi and Koichi's development of Echoes."@en . . "Koichi Hirose (Echoes) (story arc)"@en . . . . "Toshikazu Hazamada (Surface)"@en . . .