"Baseball Heroes" is a youth animation made by andda Chong's representative of the same name as the original work. The story begins when twin brothers Tatsuya Uesugi, Kazuya Uesugi, and The Young Girl Asakura Minami begin to realize the delicate triangular relationship between them. All three became freshmen at the private MingQing Gakuen High School, and the talented Kazuya not only had excellent academic performance, but also became the team's ace after joining the baseball team. However, he failed to realize Minami's dream of "taking me to Koshien" and died in a traffic accident in the summer of that year. Tatsuya realizes that he is in love with Minami as much as Kazuya, so he moves from boxing club to baseball, inheriting Kazuya's legacy and wanting to fulfill Minami's dream. However, Kotaro Matsudaira, who had partnered with Kazuya as a pitcher, was unhappy with him and had a strained relationship, and it was not until later that Kotaro finally recognized Tatsuya's strength as a pitcher and became Tatsuya's confidant.
After entering the second grade, Tatsuya was also regarded as a fierce rival by Isamu Nishimura, the ace of Seinan High School, and Akio Nitta, a strong batter at Sumi Industrial High School, and then they staged a jealous scene around the baseball team manager and gymnastics team member Asakura Minami. Although Tatsuya played out his strength as an excellent pitcher, in this year's Koshien regional qualifiers, Amisei Gakuen still lost to Shinan High School. The following year, Tatsuya entered the 3rd grade, and former baseball team captain Eiichiro Kashiwaba appeared in front of him as an acting coach, who was actually Eiichiro's younger brother Eijiro, who had always harbored hatred for the baseball team at Akasei Gakuen. The freewheeling acting coach imposed very rigorous training on the baseball team's players and ordered the manager Asakura Minami to retire. Even so, Tatsuya and the others did not flinch, but desperately persevered, keeping up with the devil training of the acting coach.
In this meaningful summer, the Koshien Regional Qualifiers must see the industrial high school and the Amishin Gakuen narrow road, and finally Tatsuya also let Nitta Sangen out, leading Akasei Gakuen to win the admission ticket to Koshien. Then, the moment when Tatsuya and Minami confirm each other's feelings finally arrives, where the animation and the original performance are different, Tatsuya also confesses to Nan on the phone, and the story ends here.