Kirisame stood as one of the Petrification Kingdom’s twin pillars of strength alongside Moz, rigorously trained from youth to guard the Medusa petrification device. Bound by unwavering discipline, she safeguarded its power against misuse and upheld her vow of celibacy to protect the island’s secrets. Her loyalty to the leadership drove her to petrify the Perseus crew and enforce harsh orders, including eliminating threats.
In the Treasure Island Arc, she clashed with Kohaku and Ginro after their exposure of Ibara’s deceit. Initially obedient to Ibara’s command to petrify the populace, she turned against him upon discovering the kingdom’s true ruler had been a statue for centuries. Her defiance led to her petrification, but Senku’s revival allowed her to pledge allegiance to Soyuz, the rightful heir, joining the Kingdom of Science.
Deployed to America with the Power Team aboard the Perseus, she engaged in skirmishes against alligators and Stanley Snyder’s troops, demonstrating lethal precision with projectiles. Her tactical ingenuity shone in disabling an aircraft using acetylene gas, while her wariness of newcomers like Luna and irritation at Moz’s antics highlighted her vigilant, battle-hardened demeanor.
During the South America Arc, she aided in crafting a diamond to reactivate Medusa and battled to reclaim it after Brody’s betrayal. Injured in the conflict, she was petrified once more during Joel’s global activation. Revived later, she remained a steadfast ally in the Kingdom of Science’s endeavors.
Kirisame balanced stoicism with fleeting flusters when confronted by romantic topics, a remnant of her celibacy vow. Post-war, she embraced a new purpose as a police officer, transitioning from enforcer of authority to guardian of peace—a testament to her adaptability and enduring dedication to protection, even as her role evolved.