In the tenth episode of "Metallic Rouge," the plot progresses as Rouge declares her intention to protect both humans and Neans. The story develops during the characters' journey to Venus, leading to a significant turning point in the events and the dynamics between the characters. Naomi, who can hardly wait to unveil a secret weapon for her cause, is surprised when she finds a stowaway named Cyan in the equipment crate. Unlike her previous hostile behavior, Cyan now displays a friendlier, childlike personality, showing affection toward Rouge and expressing a desire to be seen as her sister.

At the same time, Gene arrives on Venus with Sylvia and the Immortal Nine and is greeted by the Puppetmaster. The Puppetmaster dismisses the usurpers as mere sponsors, and the group eats together, reminiscing about shared memories that Gene cannot recall.

Cyan's behavior, which suggests her young age despite her appearance, includes drawing pictures and showing signs of jealousy toward Naomi's relationship with Rouge. Cyan's reluctance to take a bath leads to a humorous intervention by Ash, who bribes her with the promise of ice cream. The episode also highlights Cyan's volatile nature when she nearly gets into a fight with Naomi but is calmed down by Rouge. Rouge's leadership encourages Cyan to question her aggressive impulses and make independent decisions.