The Seibu Lions baseball team makes it to the next round of a baseball tournament thanks to the heroic efforts of its star player, Tabuchi, but the next stage will involve hard work and cooperation.

The Pacific League pennant race continues to be fiercely contested. However, due to Tabuchi's continued poor performance, the Lions are on a losing streak. With Yasuda showing up at the stadium with his resume and Nomura suddenly becoming more energetic after being inspired by Dokaben's words, Tabuchi's presence is becoming less and less noticeable. Desperate, Manager Nemoto and Owner Tsumori try to highlight Tabuchi's charm by organizing "Tabuchi Day," but it ends in a complete failure. Just then, Mrs. Miyoko unexpectedly appears as a cheerleader.

Our Tabuchi-kun continues to underperform, both during the New Year's games and the exhibition games. With the 1979 pennant race decided, the Seibu Nine are playing out the season. There were rumors of Tabuchi being traded during the offseason, but he left for overseas training camp in good spirits. However, Yasuda followed him all the way to Arizona, and it seems that this year will be another bad one for him. Once the season started, he was easily outplayed by Nippon Ham's rookie Kida, and things did not look good for him. As expected, the Seibu Lions missed out on the championship, and the 1980 pennant race came to an end.