Dr. Stone Test

The IDRLabs Dr. Stone Test is inspired by psychometric methodology and based on research into the characters of the anime series. The test provides feedback such as the following:

Kohaku

Kohaku is a sharp-eyed warrior whose immense physical strength and bluntness conceal a reflective and nurturing core. She is instinctively confrontational and charges into conflict first, yet she remains skeptical of any rules that sacrifice individuals for the sake of tradition. She rejects her prescribed role as a priestess to protect those she loves, becoming a symbol of resistance against rigid hierarchies. Underneath her tough reputation and gorilla jokes, she internally analyzes her experiences and shows a philosophical streak. She masks her intense concern for her friends with bravado and teasing, facing fear head-on to ensure justice. She speaks to anyone torn between social expectations and the calling to fight for what is right.

Chrome

Chrome is a self-taught sorcerer whose natural curiosity allows him to reinvent scientific knowledge from nothing. He is an energetic and dorky explorer who compulsively collects minerals and observes their reactions to solve the problems facing his village. Unlike more rigid thinkers, he is improvisational and will throw himself into danger just to test a new idea. He breaks stagnant traditions to advance his knowledge, believing that the thrill of discovery is worth any risk. He handles threats and physical pain with endurance because he trusts in the scientific vision of the future. He represents the accessible genius who proves that anyone can master the world through grinding, tinkering, and a refusal to stop asking why.

Suika

Suika is a resilient survivor and budding scientist who begins her journey as a shy child hiding under a watermelon helmet. Driven by a desperate need to be useful, she transforms her nearsightedness into an asset by becoming a master of stealth and reconnaissance. She takes unprompted initiative to help her community, often running toward danger rather than fighting head-on. She handles her fear through stubborn persistence and quiet self-talk, refusing to abandon hope even when left utterly alone for years. Her motivations center on belonging and contribution, as she fears being a burden to her team. She proves that a seemingly small person can change everything through patience and unnoticed labor.

Tsukasa Shishio

Tsukasa Shishio is a charismatic powerhouse whose desire to protect the innocent curdles into authoritarian primitivism. He handles conflict through overwhelming physical force and positions himself as the sole arbiter of who deserves to live in a new world. Driven by a deep resentment of corrupt hierarchies, he destroys the statues of the old world to prevent the return of exploitation. He uses an absolutist ideology to mask his own guilt and trauma, believing that a pure world can only be achieved through a violent cleansing of the past. While he inspires devotion through his noble presence, his worldview isolates him from true connection. He eventually reveals a capacity for remorse when his personal loyalties are tested.

Taiju Oki

Taiju Oki is an earnest and stalwart supporter who provides the emotional endurance and physical grit necessary to sustain a community. He is pathologically non-violent, choosing to absorb blows to protect others rather than ever punching back. With limitless stamina, he performs exhausting manual labor without complaint, driven by a simple belief that everyone deserves a chance at life. He handles his fear by shouting through it and lifting team morale through sheer sincerity. He is obedient to strategic authority but remains morally uncompromising, refusing to kill even when it would be tactically advantageous. He represents the devoted ally whose value lies in reliability, a loud heart, and a total lack of hidden agendas.

Gen Asagiri

Gen Asagiri is a silver-tongued mentalist who weaponizes psychology instead of physics. As a self-branded shallow entertainer, he acts as a trickster-diplomat between brute force and pure science. He avoids direct confrontation, preferring persuasion, misdirection, and morale management to achieve his goals. He masks his deep-seated anxiety behind a flippant and hedonistic persona, reading every room to tailor his speech for specific outcomes. Although he initially prioritizes self-preservation, he develops a sincere loyalty to the vision of a better world. He uses teasing as both a bonding tool and a shield. He represents the professional liar who chooses conviction over cynicism, using social intelligence to survive and protect his allies.

Senku Ishigami

Senku Ishigami is a hyper-rational pioneer who treats science as both a weapon and a promise. He is a cocky genius who counted every second of his 3,700-year petrification to track the passing years, then woke set on rebuilding civilization from scratch. In conflict, he defaults to logic and long-range planning, using technological leverage to avoid direct violence. He creates clear divisions of labor and expects others to follow his roadmap because it works. While he presents as emotionally distant and blunt, he repeatedly risks his own progress to protect his friends. He uses planning as armor against emotional uncertainty, sublimating his grief and vulnerability into experiments. He inspires others through competence and vision rather than warmth.