After Arlong's previous crew split up, Kaneshiro joined Arlong and several other Fishman on his quest to set up a Fishman Empire in East Blue. Taking over the various villages of Commi Island as a start, they built Arlong Park. After eight years of rule over the island, Kanshiro, while accompanying Arlong on one of his excursions, witnessed Usopp bluntly shoot at Arlong.