Conflict could be internal or external. Maybe Nova feels inadequate because they can't feel emotions, but Lumi helps them understand the value in their own way. External conflict could be a malfunctioning toy that they need to stop, using both emotional insight and technical skills.
Check if there are any OmeK lore guidelines to follow. Since I'm not completely sure, stick to general creativity. Make the characters' actions align with their traits—unicorn as gentle, robot as analytical but with a growing emotional side. Conflict could be internal or external
Also, think about names for the characters. Maybe Lumi for the unicorn and Nova for the robot. Their interactions in different activities—like exploring the town, attending events, problem-solving together. Conflict could be internal or external