The super-energetic, yet sometimes anxious Saki formerly worked as a food vendor at the race car track. Even when she's sad or in agony, she remains with a smile and encourages others to smile. But she does have her breaking point, which is a real tough enemy. Her nickname is Sweet Angel. As Go-On Yellow, she can push through tough terrain, overcome strong attacks and move forward. In Episode 6, she meets Seji, a flutist, who she spent time with, but Sosuke had made himself and then the other members believe that she was in love with Seji and wanted to get married, hence leaving the team. But all of this was incorrect and these dellusions almost drove her away. She stayed on point, she was not going anywhere. She just wants to fun, much like Hanto, which lead them to hang out together and like Bomper accessed, was because of their ages being close together. She and Hanto are sent to another dimension in Episode 9 adn she looses her nerve but Hanto reminds her of the many times she has been brave. In Episode 11, she is made a pop idol, she is not completely sure of what is going on but accepts it as long as she is making other people happy. She and Bear RV were not so sure of the Wing Engines when they arrive around Episode 16. "Smile Blooming!! Go-on Yellow"