Ace of Diamond S01E01 - The One Pitch

Eijun Sawamura, the pitcher of a novice junior high baseball team, meets with a bitter walk-off loss. For Sawamura the loss becomes his last game in junior high, so he sets a new goal of going to the nationals in high school with his teammates. As he begins his hard quest on studying, a guest arrives unannounced. Her name is Rei Takashima. Rei had been watching his last game and believes Sawamura has a gift. She is the assistant director of the prestigious Seidou High School Baseball Team, and she invites Sawamura to Seido after seeing his potential. Sawamura's reply shocks her, but Takashima refuses to give up and tricks Sawamura into a visit.