After many setbacks and bitterness, the competitive Flower Department of du Ruize High School, which has only been established for one year, is finally lucky enough to go to the venue of the national competition. By chance, Ayase Qianhao (Hiroase Siji) also completed a long-lost meeting with his childhood friend Mianya Shin (Meijiyou). However, due to the death of his grandfather, as a spiritual pillar, Miangu seems to have lost the courage and goal to move forward, and has long been far away from the flower field. Also worried about his state is Miangu's fateful enemy, Ruo Gong Shichang (Matsuoka Moyou), the strongest queen. In order to defeat the Queen, Qianchao started to practice alone, but unwittingly alienated with Dajiang (Shangbishi Mengyin), Nishida Youzheng (Yamoto Youma), Komano (Mori Yoshi), Makajima Taiichi (Nomura Zhou Ping) and other partners. The competition is just around the corner, boys and girls are about to spend an unforgettable summer. This film is adapted from the last cartoon of the same name by Yuji.