Zico often stresses caution and observation over rash action, and is quick to provide 'fatherly' advise to both Roya and Zed when they are experiencing periods of doubt. He was a friend of Neotopia's ruler, Hyrum, and was distressed to see how Hyrum had transformed Neotopia into a harsh state. Conversations between the two seemed to reveal that once Hyrum was much like Zico, but had become radical later in life. Recent events have revealed that Zico was not always the kind and patient man he is now. Revelations about Zico's past have surfaced recently since the appearance of Zed's mother, Sara. It became obvious that Sara hated Zico, and Zico was hiding something that was of great pain to him. Zico later revealed to Zed that Amil Gaoul had once been the guardian Spirit of Templar but no one could wield him, not even Zico. To ensure Templar's survival, Zico had begun an aggressive campaign to find a Shard Caster for the Key Spirit. This appears to have gone on for some time until Zico discovered that Amil Gaoul had chosen someone else. Zico had been shown a vision of Zed's young mother, pregnant with Zed. Zico traveled to Calm and abducted Zed's mother, Sara, and took her back to Templar where she was forcefully turned into a Shard Caster and received Amil Gaoul's shard. Zico then rigorously trained Sara to one day wield the Spirit, often working Sara so hard she would collapse at night from fatigue and pain. Later, Zico defended Templar from an invasion by Zymot. It was during this battle that Sara tried to call out Amil Gaoul, and when he appeared he abandoned Sara and left. Realizing that Sara was not the chosen one, Zico turned his back on Sara and told her to return to Calm. After meeting Zed, Zico came to the realization that he had made a mistake thinking Sara was the chosen Shard Caster of Amil Gaoul. It was not Sara who was chosen, but her unborn child, Zed, growing in her womb, who was the chosen one. When Zed attempts to follow his mother, Zico intervenes and blocks his path. After exchanging angry words, he and Zed battle each other, and Zico knocks Zed unconscious with a swift blow to the gut. He then locks Zed up in a cell. After Zed awakens, Zico tries to explain that Sara has been possessed by the power that the Amil Gaoul possesses.