In order for Nagi to be a top rated bounty hunter she's gonna need a top of the line ship. Well this is it. The only other cabbit in the Tenchi Universe. In the OAV Ryo-Ohki was created by Washu and the only member of her race. In the Tenchi Universe there are at least two. Its also good for the future of the species that Ken-Ohki is a boy.

Ken-Ohki shares many things in common with Ryo-Ohki like a taste for carrots. He also can transform into a Spaceship and a cute little cabbit. I'm not sure if Ken-Ohki can change into a humanoid like Ryo-Ohki but I assume.

As a ship it seems that Ken-Ohki is more powerful. He also has his devastating death-blossom like attack in which he lures as many enemies as possible close to him. Once they are within range he releases laser blasts in every direction. This attack was used in the final episodes of Tenchi Universe.

Ken-Ohki's relationship with Ryo-Ohki prevented Ryoko from killing Nagi when she was defeated on Venus.