![Sadatsugu Nagaishi](https://cdn.noitatnemucod.net/thumbnail/400x400/100/60430741dd4244238443d09d9ae87a36.jpg)
Sadatsugu Nagaishi
永石 定嗣
Trusted friend and confidant to the three sisters, a very good friend of Heinz and his wife. Nagaishi provides detailed information for Cat's Eye's heists and also helps them acquire any hardware and/or other sophisticated equipment that they may need that Ai cannot provide. His background is a mystery but he may have been a member of the Armed Forces as he has some military expertise.
(Source: Wikipedia)
(Source: Wikipedia)
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Cat
Supporting (Role) TV
![Ooki, Tamio](https://cdn.noitatnemucod.net/thumbnail/100x100/100/4b72a0adde723cb3d278cd1c76e6435d.jpg)