In the summer of the year 2000.
				11 year old Yusuke, and his classmates are camping in a woods when suddenly they see a bright light streak over the treetops and into the woods. The boys takes off into the woods towards the light. There in the ground, growing, they find a small round metallic object. Just as Yusuke reaches to touch the mysterious object up pops a set of eys and the object says; "I am Tetra, I meet Yusuke". Startled Yusuke replies "Your name is Tetra? Cool!" Tetra is kept from adult eyes in Yusuke's closet. Tetra being creating wonderful gadgets using "never-seen-before" technology. It would appear Tetra was designed with some ultra-high-tech artificial intelligence. But where this Tetra come from and what is Tetra's purpose? As the relationship grows between Yusuke and Tatra, these questions are answered.