A ceramic figure of a blue mouse with long ears, stubby legs, and no tail suddenly comes to life. He is a “Manxmouse” as known in the legend. Since he is new to this world, his fearless curiosity leads him to meet a frog couple, an aviator hawk, a stray tiger, and a girl. Although he learns about his ultimate fate-to be eaten by a “Manxcat”-he decides to face this cat and challenge his destiny.
Tetsuya, a worker at a US Air Base who moonlights as a bartender with his bar hostess roommate, dreams to move to the United States one day. Meanwhile, his best friend Jun wants to build a home on some local wasteland. Yet the introduction of Yuki, who they both fall in love with, begins to tear their friendship apart.