He grew up hearing stories about Parn and the six heroes who saved the world, and he wanted to be like them one day. Because he worshiped Parn so much, when they finally met, Spark acted more nervous than his usual self but at the same time subdued. He overcame those sorts of feelings quickly, as Parn treated him like his equal, and they even got into fights from time to time due to disagreements on how to act during the course of the series. Despite the arguments, they were actually having fun most of the time since they finally had someone they could fight against who was just as stubborn. Not without reason, Deedlit accused them of being grown-up children who only wanted to play.

Despite Spark's emotional tendencies, he’s loyal, cares for everybody's well-being, and has a high sense of duty. Due to his youth and inexperience, at first he could also be really reckless and imprudent. He had the tendency to run into action without thinking first, no matter how dangerous the situation was, especially if he thought that an injustice was being committed or someone he cared about was in danger. He was raised in the desert and didn’t travel much before his quest, so in many ways, he was still fairly innocent and had just discovered the world. He gets mesmerized by the sea and the tropical green forests when he finally sees them, and he always keeps a sense of wonder.

Spark is also pretty shy when it comes to people flirting with him, or simply interacting with the person he likes. He tends to blush a lot and to act somewhat awkward because he doesn't know what to do with his own feelings or how to deal with someone making advances at him.