Amongst the Explorers, Onia appears to be the most ruthless and violent of the trio, going so far as to threaten Liko through Sprigatito to achieve her goals. In For Sure! 'Cause Sprigatito's with Me!, however, Onia demonstrated a much lighter side while monitoring Sprigatito, even to the point of her wanting to keep the Grass Cat Pokémon to herself. More recently, in HZ104, it was revealed that these feelings did not change when Onia delivered food especially for Liko's Meowscarada. Onia has been shown to be quite loyal to Amethio, whether receiving instructions on how to proceed or not interfering with his actions. This was also shown in Into a New Sky! The Brave Olivine! when she insisted on accompanying Amethio on his mission after being dismissed from the Explorers. As seen in HZ103, even though she doesn't show it much, Onia does care for Zirc's feelings and feels content when he's happy as she went out of her way to help him find his ticket after he lost it and got depressed. And she knows when to ask for help as at the end, she and Zirc both personally asked Liko to help them find Amethio. It was also revealed that she is a fan of Grusha since his snowboarding days. In HZ104, it's revealed that she and Zirc were a little judgmental of Amethio when they first met him but her perspective of Amethio changed overtime and she became completely loyal to him and wants to help him showing she cares for Amethio as a friend and superiorDespite being part of the Explorers, Onia has been shown to be warmhearted, taking good care of Liko's Sprigatito when it was captured by Amethio. She was quick to give Sprigatito whatever it wanted such as food and toys. Onia tends to hide this side of herself, where she was quickly embarrassed after Amethio saw her playing with Sprigatito. Even when confronting it on the island, Onia didn't wish to have to fight the Grass Cat Pokémon and wanted it for herself. Onia is also a loyal companion to Amethio. Like Zirc, she respects Amethio and will never leave the young man, even after Amethio was fired from the Explorers. "Hi I'm onia. It's a pleasure to meet you..."