Yukinojo is the Artificial Intelligence (AI) for Mihoshi's cruiser. He is a prototype for a new series of Galaxy Police patrol ships. To make sure the he is truly fool proof he has been assigned to Detective First Class Mihoshi for field testing. I guess if I wanted to make sure that a ship's computer was truly fool proof I'd pick Mihoshi to try it out. To the right you can see a sketch of the exterior of Yukinojo. Click on it to see a better view.

Yukinojo is capable of almost everything necessary to keep a ship on patrol. He also is very helpful to the ship's occupants and helps them perform their duties.