Runo Misaki (美咲 琉乃 Misaki Runo), is a 12-year-old girl who loves playing Bakugan against skilled people so she can show off. Runo is a Haos brawler. Her Guardian Bakugan is a Haos Tigrerra (the others being Terrowclaw and Saurus), who is very obedient and powerful in battle. Tigrerra later evolves into Haos Blade Tigrerra. Though underage (in the first season), she helps her parents run their family business in a cafe.