All eyes are on Tokai Teio as she takes on the Japanese Derby, ready to gallop in Symboli Rudolf's footsteps and become an undefeated Triple Crown Horse Girl. The stands are full. The track is set. It's time to see which horse girl fortune favors!

The Japanese Derby is over, and Tokai Teio's injuries have landed her in rehabilitation. She's determined to recover by the Kikkashou, the last race she needs for the Triple Crown. Meanwhile Nice Nature throws herself into training with the rest of Team Canopus, determined to claim victory at the Kikkashou herself.

Team Spica goes for their first shrine visit of the year. After praying for victory, Tokai Teio resolves herself to face rival Mejiro McQueen in the upcoming Spring Tennoushou. But before then, Mejiro McQueen must first make it through the Hanshin Daishouten preliminary.

In preparation for the Spring Tennoushou, Tokai Teio joins the spectators at another race, the Satsukishou. There, while watching Triple Crown hopeful Mihono Bourbon battle for first, she comes to a realization. Meanwhile, Mejiro McQueen cannot hide her frustration upon learning that the world has its money on Tokai Teio.

After tasting her first defeat, Tokai Teio is listless for days. Finally, Trainer approaches her and tells her that, as Team Spica's leader, there is a place she must visit. Meanwhile, Mihono Bourbon has her attention focused on the upcoming Kikkkashou.

Seeking three consecutive victories at the Spring Tennoushou, Mejiro McQueen's focus is only interrupted by the sudden withdrawal of Rice Shower, another top racer. Intuiting Mejiro McQueen's feelings on the matter, Tokai Teio tries to persuade Rice Shower to change her mind.

Both Mejiro McQueen and Rice Shower have been practicing hard for the Spring Tennoushou, but the gap between them only grows. Realizing that she has no hope for victory at this rate, Rice Shower disappears right before the race is set to begin.

Team Spica is stunned by BNW's outstanding performance at the Japanese Derby. Meanwhile, Tokai Teio is supposed to be focused on making her comeback in the Takarazuka Kinen, but ends up fracturing a bone for the third time. The doctor tells her that even after it heals, there's a chance she'll never get her old speed back again.

No longer able to run at full speed, Tokai Teio realizes that she'll never win again. Left with no reason to race, she plans to withdraw from Team Spica, but Trainer asks her to put on one last show for her fans.

Tokai Teio trains to race once more, having had a change of heart. She thanks almost everyone who helped her through her ordeal, but finds herself struggling to be honest with Mejiro McQueen.

As Tokai Teio continues to train in preparation for her return to racing, Mejiro McQueen notices something strange.

The Arima Kinen is the final G1 race of the year, featuring a roster of horse girls selected by fan ballot. Tokai Teio is among the competitors, and this time, she is running with something to prove.