地球防衛少女イコちゃん3 大江戸大作戦

The scene shifts to the vibrant city of Edo, where Iko-chan embarks on a grand adventure! The forces of an invading enemy loom over the Edo period—but our very own "Earth Defense Girl" Iko-chan stands ready to fight, fueled by the power of friendship with a girl named O-Iko whom she meets along the way!