A kind-hearted and endlessly determined Umamusume from the countryside of Hokkaido, Special Week arrives at Tracen Academy with a single, heartfelt dream — to become the best race girl in Japan, just like her late mother wished. Naïve but sincere, she starts out clumsy and uncertain in the big city, yet her optimism and resilience quickly win over everyone around her.

Special Week’s greatest strength lies in her spirit. No matter how many times she falters, she never gives up, always smiling through the pain and cheering for others even when she’s struggling herself. Her innocence hides a fierce competitive streak — once she’s on the track, her bright energy turns into unshakable focus.

She forms a close bond with her roommate, Silence Suzuka, whose grace and speed inspire her to run faster than ever. Their friendship becomes the emotional core of her story, especially after Suzuka’s tragic injury, which drives Special Week to mature from a hopeful rookie into a true champion.

Over the course of the anime, she grows from a shy newcomer into the heart of Team Spica — a reliable teammate, an inspiration to juniors, and the embodiment of what it means to run for others as much as for yourself. Her cheerful catchphrase, “I’ll do my best!”, perfectly sums up her personality: simple, pure, and full of heart.

Even when facing impossible odds, Special Week never loses sight of her dream — not to win for glory, but to honour her mother’s memory and everyone who believed in her. She isn’t just the protagonist of Uma Musume: Pretty Derby — she’s its soul, representing the kindness, courage, and optimism that make the series shine.