In a world where flying is as easy as riding a bicycle, there is a popular sport called 'Flying Circus'.The protagonist once had a promising future ahead of him in that sport, but due to a humiliating defeat in addition to a certain other reasons, he decided to leave. However, when he meets the transfer student Kurashina Asuka and slowly regains his passion as he teaches her how to fly. He will participate once again in the Flying Circus as his situation changed, but how high will he be able to fly this side with Asuka at his side?