TV-Series
Description
Arthur Crypton is a fifteen-year-old first-year student at West Genetics, where he serves as a Limiter. He is of British nationality. Arthur becomes the Limiter partner of the Pandora Ganessa Roland, a pairing that stems from his strong admiration for her abilities and presence. Prior to their formal partnership, Arthur encountered Ganessa during a haunted house event; when a prankster using holograms frightened Ganessa, Arthur bravely stood between her and the perceived threat, citing his duty as a Limiter to protect a Pandora. He later formally asked her to perform the Baptism ceremony with him, and they became a pair not long after.

In terms of personality, Arthur is generally friendly and welcoming to those he meets. He proves to be highly tolerant and patient, a necessary trait given his partner Ganessa's arrogant and prideful demeanor. He is more than willing to cater to her needs and bears her personality without complaint. Due to the hostile reputation of Satellizer L. Bridget, known as the Untouchable Queen, Arthur initially keeps his distance from her and repeatedly warns his friend Kazuya Aoi to do the same. Arthur is also revealed to be religious, noting that he attends church on a weekly basis.

Arthur's primary motivation is his dedication to his role as a Limiter and his care for his partner, Ganessa. He thinks the world of her and is committed to pleasing her. This devotion is most clearly demonstrated during the 10th Nova Clash, when Ganessa is gravely injured and presumed dead after shielding Satellizer from a particle beam. Refusing to accept her death, Arthur desperately tries to revive her, carrying her on his back and even pleading with her to wake up and insult him if necessary. His persistence is rewarded when she is later shown to be breathing, and he expresses relief and contentment that she will live, despite explaining that a Pandora's regenerative abilities come at the cost of a shorter overall lifespan.

Arthur's role in the story is largely that of a supportive friend and a fellow student at West Genetics. He serves as an early source of information for the protagonist, Kazuya Aoi, explaining the nature of the Pandora-Limiter partnership and the Ereinbar Set. He and Kazuya share a strong mutual friendship, being both classmates and next-door neighbors in their dormitory. Arthur is also close friends with fellow first-year Kaho Hiiragi. When Kazuya is taken hostage by thugs in the city, Arthur is the one captured, which leads to Kazuya using his Freezing ability to save him, deepening their bond. Arthur also develops a supportive relationship with Rana Linchen, initially encouraging her pursuit of Kazuya as a partner because he worries about Kazuya's safety with Satellizer.

Arthur's character shows development primarily through his deepening commitment to Ganessa. While he initially partners with her out of admiration, his experiences, particularly nearly losing her in battle, solidify his dedication beyond mere tolerance of her difficult personality. He moves from a Limiter who simply caters to her needs to one who will desperately fight against the belief that she is dead, showing a profound emotional connection.

As a Limiter, Arthur possesses the ability to create and nullify a Freezing field. This is a standard ability for all Limiters at West Genetics, allowing him to slow or stop the movements of Novas or other enemies in a specific area, which supports his Pandora partner in combat.