Neko

She is a female white cat who lives near the Hinata household.

She developed feelings for Giroro after he rescued her from the rain; consequently, she is often found in Giroro's tent. She gets jealous and angry when Giroro is so captivated by a photograph of Natsumi that he fails to notice her presence. The pinecone hanging around her neck is a gift from Giroro.

She loves dried seaweed (nori) and is friendly toward Fuyuki, who often gives it to her, but she dislikes Natsumi, who remains oblivious to Giroro's romantic feelings. Natsumi, failing to grasp this dynamic, often tries to play with her but is consistently rebuffed. However, when the photograph of Natsumi that Giroro had been admiring was lost because of her—leaving Giroro in a state of shock—she transformed into a human using the "We Are All Alive" Gun and strove to take a new photo of Natsumi. She has a history of fighting against more than a hundred other cats.

Despite her long-standing relationship with the Hinata siblings and the Keroro Platoon, she remains nameless—likely because Aki, the Hinata family matriarch, dislikes animals and forbids keeping pets.