SOS! Tokyo Metro Explorers: The Next
Summer, 2006. A 5th grader Ryuhei discovers a notebook entitled “Tokyo Exploring Records.” It was a journal kept by his father, Shohei, when he was around Ryuhei’s age. Ryuhei forms his own exploration party with his friends Shun and Yoshio. One summer day, the party and Ryuhei’s younger brother Sasuke who happens to tag along, heads to the dungeon looking for a treasure indicated on the father’s map. Soon they encounter some weird but good-natured grown-ups who live underground. The kids are welcomed by the underground residents; but then the dungeon turns into a combat zone involving an old, self-claimed Japanese soldier… Would the kids be able to discover the real treasure hidden underground?
US Site: http://www.bandaivisual.us/sos/