Having woken up on Okoto’s shores shortly after the Toa rescued Ekimu, with no memory, he was brought to Tahu and trained under him for only a few days.
Soon after, Kasai and the rest of his newly formed team were sent to locate the ancient Mask of Imitation, which had been stolen from it’s resting place below ground.
When Kasai and his team returned, the city of the Mask Makers was under attack, and nearly in ruin, quickly they joined the fight, helping to finish the last of the Shadow Horde.
After Ekimu returned and informed them of the Toa’s brave sacrifice, Kasai and his team abandoned their titles of Toa, to honor the heroes who gave their lives for Okoto.
Simple but I like it. He’s not special but none of his designs are bold enough to fail, which results in what appears as a solid, durable and good looking figure.