Leo is given the Psi Gear by the Smart Brain corporation, allowing him to transform into Kamen Rider Psi. As Psi, he is under the personal supervision of the Rose Ophnoch, Jordan Midgley. It is not stated which Orphnoch Leo is, but he does the use the Orphnoch ability to turn his finger into a tentacle to suck out Cameron's Orphnoch DNA after defeating him. He used the gear a total of 4 times throughout the series. Despite his more advanced Rider gear, the more experienced Phi hits the Sparkle Cut through the Gear itself & almost into Leo's stomach, destroying the Gear & wounding Leo. What happened to Leo in the end will remain a mystery.