Legendary Hit-man, Kunioka Gaiden Kunioka Tours Atami/Izu Edition - The Mystery of an Ancient Assassin Civilisation and the Attack of the Police Assassin.

Original · 最強殺し屋伝説国岡外伝 国岡ツアーズ熱海・伊豆編 古代殺し屋文明の謎と、警殺官の襲来

This time they go on a treasure hunt in Atami and Izu.