Agnes Tachyon

Agnes Tachyon is a horse girl and experimental researcher in Umamusume: Pretty Derby, based on the Japanese racehorse of the same name. She treats racing as a scientific problem and often uses her own body and her trainer as subjects for unconventional tests.

Agnes Tachyon's racing experiments

Eccentric, brilliant, and relentlessly curious, Tachyon is driven less by ordinary victory than by discovering the limits of an Umamusume's potential. Her detached language sometimes masks genuine concern for the people who support her.

Curiosity, ambition, and trust in her trainer

Her strengths lie in analytical training, adaptable race planning, and a powerful finishing drive. The relationship with her trainer gradually teaches her to balance scientific obsession with responsibility for her own health and future.