After the teenagers in the real new town reach the age of 10, they can be qualified to train Pokémon. The 10-year-old boy Xiaozhi (voiced by Matsumoto Rika) aims to become the most powerful Pokémon trainer and is about to embark on a journey of practice. Because Xiaozhi was late for bed in the morning, he almost lost the qualification to choose Pokémon. He had no choice but to take away a Pokémon that was left - Pikachu (voiced by Otani Yujiang). Pikachu, also known as the electric mouse, has a cute appearance, but his personality is shy and introverted but not close to humans. He will discharge electric people randomly if he is dissatisfied, and his irritable temper makes Xiaozhi suffer a lot. Dr. Oki gave Xiaozhi the Pokémon map and the Poké Ball as a practice gift. In front of Xiaozhi and Pikachu, there are many puzzles and adventures in the world of Pokémon waiting for them. Is it light or darkness that greets them? Can Xiaozhi become a Pokémon master as he wishes?