Hack It Up! is about an aspiring hacky sack player by the name of Sync Hatsue. Her brother is the ever popular Kenji, who won the previous tourney with a bang. Now, she wants to do it as well and face the champion of the Kyoto Tourney. Her very own brother. But she can't do it alone. So this causes her to make up her own Vexillum, a team of hackers like herself. With her two best friends, Calypso Amarante and Hinshi Yuri, and a rowdy bunch of boys, she will try her hand at the Kyoto Tourney.. But things are never that easy. (old summary, placeholder)