Asuka, being secretly a galactic guardian and in high school meets a new guy named Shiro Inoue, and has a crush on him. Until suddenly his sister, Mayumi comes with him, trying to be overprotective to him. Which Asuka are enemies with her. But a surprise comes to Asuka when she'll find out Shiro, her crush, is also an international galactic guardian like her.
After the Japanese Galactic Guardian Headquarters was destroyed, Asuka felt very sad about it. However, Kaoru, Sparky and Shiro informed her that the survivors of the GGHQ of Japan ended up on a place called the "Pahkitew Island", for which the sixth season of Total Drama will take place and they must team up again.