Miracle Giants Dome-kun

With a stray pitch that completely missed the batter, Eijun Sawamura loses his final middle school baseball game. Frustrated by this defeat, Eijun and his teammates vow to reach the national tournament once they are in high school. But everything changes when a scout unexpectedly invites him to Tokyo's prestigious Seidou High School after seeing the potential in his unusual pitching style. Encouraged by his teammates, Eijun accepts the offer, ready to improve his skills and play at a much more competitive level of baseball. However, now surrounded by a large number of skilled players, Eijun struggles to find his place on the team. He declares that he will one day become the team's ace, but that's only if fellow first year Satoru Furuya doesn't take the title first, with his breakneck fastballs that earn him a coveted spot on the starting roster. With the addition of these talented new players to an already powerful lineup, the Seidou baseball team aims to become the best in Japan, facing off against a number of formidable foes that stand in their way.

Honda Shigeharu is a Major League batter on the rise. His son Gorou is a Little League pitcher who one day hopes to follow in his father's footsteps. Hoshino Momoko is Gorou's schoolteacher and the first woman Shigeharu has been interested in since the death of Gorou's mother. The destinies of these three individuals will become intertwined as father and son experience both heartbreak and triumph on the baseball diamond. But when an unspeakable tragedy visits the family, it will take everything they have to pick up the pieces and reclaim their dreams.

This is a documentary-style animated special drama that tells the story of Shigeo Nagashima, a representative postwar baseball player who was also known as "Mr. Giants" when he was still playing for the Yomiuri Giants. The story is just after the end of the war.

Shigeno Daigo is an elementary student whose father, Goro, is a professional baseball player. Inspired by his father, who was once a Major League player, Daigo started playing baseball with the Mifune Dolphins, a youth team. However, he was unable to live up to the expectations of being the son of a professional, and quit baseball after less than a year. Then, in the spring of his sixth-grade year, Daigo's school welcomes a transfer student, Sato Hikaru, whose father is Sato Toshiya, a former Major League player and Goro's close friend. The fate of these two young men begins to move forward!