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Janitors Satoru Mashiko and Haruo Iio are driving towards Energy Bio Corporation for work when motorcycle courier Nozomu Gotou passes by them. Gotou goes to deliver a package to Yuriko Niimi, the daughter of the president of Energy Bio Corporation. Meanwhile, Fuyuko Todoroki orders a cappuccino from coffee shop employee Akira Tanada. They talk before she has to leave to meet with insurance salesman Yukio Tomizawa downstairs. As Mashiko and Iio start cleaning, Tanada apologizes for giving security center employee Shouji Yamagiwa and new security manager Shinichirou; Okanaka the wrong order. At 3:00 p.m., a disguised man with a rifle informs everyone that he and his allies have hijacked the building and set up a bomb that will go off in ninety minutes should President Niimi not arrive with the ransom. Before she is locked in with Tomizawa, Fuyuko and the rest of the hostages in the fifth floor lobby, Yuriko runs off with Gotou; running after her. At the police station, Niimi and chief detective Genji Morozumi keep in contact with a hiding Tanada...