Det här är nästan säkert Yoko Tsuno , en fransk-belgisk serie som innehåller en ung kvinnlig elektronikingenjör från Japan. A Google bildsök visar många komiska omslag som jag tycker matchar din beskrivning.
Yoko Tsuno first meets Vic and Pol when they catch her trying to break into a laboratory in Le Trio de l'étrange. The moment the men confront her, the owner of the laboratory explains that he hired the Japanese girl to test a burglar alarm system. Vic, intrigued by Yoko's knowledge in electrical engineering and planning to do an independent television production with Pol as the cameraman, asks Yoko to come along. However, their filming operation turns out to become the first of a whole series of strange adventures, as they stumble upon a secret underground enclave inhabitated by a highly advanced, blue-skinned people, the Vineans. This adventure forges a strong friendship between the three, inspiring them to stay together as the "Strange Trio", who join each other on surreal adventures on Earth, in outer space, and even the depths of bygone times.
The main characters are based in Belgium, although adventures take place around the world and even in the Vinean solar system, 2,500,000 light years away. When the stories are Earth-based, they mostly take place in existing settings, such as the German locations Burg Katz and Rothenburg ob der Tauber, the Chinese city of Hong Kong, or the Belgian city of Bruges.