Igarashi sends Tonbo, now a high schooler, to stay at a golf practice range in Kumamoto run by a friend who trains junior players. When Tonbo tries a driver shot for the first time, the other students are puzzled by her skill. She soon gets a chance to practice at a nearby course, where she meets Hinoki Otowa, a talented junior golfer known for her performance at the Kyushu Junior Championship.

Tonbo and Hinoki hit the golf course for practice. As Tonbo unleashes bold, carefree shots, Hinoki’s view of her begins to change. Despite the strong winds, they exchange impressive plays. Meanwhile, Igarashi arrives with a special gift for Tonbo, who's just started her new life in Kumamoto.

After witnessing Tonbo's golfing style up close, Coach Hajime is determined to unlock her potential by entering her in the Kyushu Women's Championship. However, she must meet the eligibility criteria first. As Tonbo starts her new high school life, things get hectic as she learns to juggle school, going to the practice range, and practicing on the golf course to secure her spot in the tournament.

After competing in the Kyushu Women’s Championship, Tonbo travels to Hinoshima with Igarashi to report the results. Together, they reflect on their new challenges in Kumamoto. Along the way, they recall the people who supported Tonbo and the rivals she faced in her first tournament, each with their own aspirations. Tonbo's journey through golf continues to soar—unstoppable and full of promise.