Kaoru Tono heard a rumor: The laws of space and time mean nothing to the Urashima Tunnel. If you find it, walk through and you'll find your heart's desire on the other side...in exchange for years of your own life. One night, Kaoru just so happens to find himself standing in front of a tunnel that looks suspiciously like the one the rumor describes. He finds himself thinking of Karen, the sister he lost in an accident five years ago. To Kaoru's surprise, he's been followed by the new transfer student Anzu Hanashiro, who promises to help him experiment with the mysterious tunnel—but what does she want from Kaoru in exchange? And what will he have left to give, after the tunnel's done with him?

Home to countless street acts and performances, Veludo Way attracts those interested in watching professional actors. After receiving a mysterious letter, Izumi Tachibana arrives at the venue where her father directed a once-popular theater group, Mankai Company, but learns that the building is about to be repurposed due to excessive debt. At the last minute, she convinces the debt collector to give the ensemble one more chance. He is willing to accept but on three conditions: their debut show must be successfully produced by the following month, the four all-male sub-troupes must be reinstated, and the debt must be paid off within a year. To top it off, Izumi herself must become the director. With no time to lose, Izumi quickly gathers five people for the Spring Troupe: Sakuya Sakuma, an enthusiastic high school student; Masumi Usui, a boy infatuated with Izumi; Tsuzuru Minagi, an aspiring playwright; Itaru Chigasaki, a mature office worker; and Citron, a friendly foreigner. Though they have little or no experience in acting, it's up to Izumi to train and prepare them for a performance that will restore Mankai Company to its former glory.

With the completion of the Summer Troupe's show, Izumi Tachibana must now recruit five members for the next sub-troupe, the Autumn Troupe. Luckily, enough people arrive at the audition: Banri Settsu, a talented but boastful jack of all trades; Juuza Hyoudou, a stone-faced delinquent passionate about acting; Taichi Nanao, a man wanting to impress girls through the stage; Omi Fushimi, a college student, amateur photographer, and adept cook; and Sakyou Furuichi, a yakuza member who shares a past connection with the Mankai Company. But between the non-existent teamwork and multiple threats jeopardizing the show's success, Izumi realizes that the troupe might be more difficult to handle than she first thought. How will she be able to unite them in time for their debut performance?

In the first test of a revolutionary personal battle-suit, the MADOX-01, Ace female test-pilot Elle Kusomoto smashes an attacking tank force and humiliates Lt. Kilgore, Japan's most-macho tank-jockey, in the process. Kilgore swears he'll get even, and he gets his chance when the prototype MADOX literally falls off the back of a truck in the middle of Tokyo. Meanwhile, the MADOX, which fell off the back of one truck, off a bridge, and into the back of another truck, has found its way into the hands of college student Koji Sujimoto. Intruiged by the MADOX, Koji makes the big mistake of fooling with it without reading the manual first, and soon finds himself locked in the suit and zooming around downtown Tokyo.