Nikki Hanada

Nikki Hanada (also spelled Niki or Nicky) is a supporting character in the Dr. Stone anime. She's a tall, athletic young woman (around 180 cm) with a muscular yet curvy build, blonde hair styled in two braided ponytails tied with blue bows, and green eyes. In the anime, she initially wears a simple, crude green dress typical of the Stone World era, which shows off her strong physique.

Personality-wise, Nikki appears tough, brawny, and intimidating on the surface—she's physically powerful (with a background in judo from the modern world) and often acts as muscle for the group, keeping rowdier members in line. However, she's deeply affectionate and sentimental underneath, being an extreme fangirl of the singer Lillian Weinberg. Her devotion to Lillian's music is so strong that it becomes a key factor in her character arc: she starts as a revived member of the Tsukasa Empire but quickly defects to Senku's Kingdom of Science when it means protecting Lillian's final surviving song. This reveals her softer, more emotional side, including her knowledge of trivia about her idol and a hidden vulnerability from her pre-petrification life. Overall, she's loyal, straightforward, and a reliable powerhouse once she's on the right side.