Akira Takaoka, feeling ashamed as the sole member of the Electric Brain Study Society without a computer, becomes ecstatic upon seeing an electronics store advertising a PC9821 for a mere ninety-eight thousand yen. Unfortunately, the promotion only extends to the first five buyers and, to Akira's dismay, the PCs are already gone when he arrives. Offered an identical deal from a mysterious man in an alley, Akira jumps at the chance, only to realize later that he has actually acquired a PC2198, a highly advanced bio-computer that relies on a constant supply of sperm to function. As it turns out, the PC2198, lovingly named Mimi, becomes the key to protecting Akira from the nefarious Apple Nacintosh sisters, who aim to dominate the Japanese PC market. Will Akira, plagued with embarrassment, be able to provide Mimi with the fuel she needs to emerge victorious?