In the anime Pokémon Sun & Moon, Chrys is a young male student at the Pokémon School on Melemele Island. He is of short stature and has a stocky build, with orange hair and a distinctive outfit that includes a white polo shirt featuring a Game Boy design, brown shorts, a grey belt, green sneakers, and a yellow scarf shaped like a Pikachu's tail. His primary Pokémon, a female Togedemaru, is rarely far from his side, often perching on his shoulder or being held in his arms.

Chrys is characterized as a highly intelligent and self-identified geek with a natural gift for inventing devices and machinery. He is passionate about programming and meticulously analyzes the world around him, often approaching situations with a logical and technological perspective. While he can become so absorbed in his activities and research that he occasionally comes across as blunt or socially awkward, he is fundamentally kind, caring, and deeply loyal to his friends and his Pokémon. A notable vulnerability is his fear of the dark; he relies on the soft glow from Togedemaru's cheeks and tail to feel secure when sleeping or in dark places.

His primary motivation stems from his love of science and Electric-type Pokémon. He is driven to create new inventions and to understand the mechanics of the world, often using his own Pokémon to power and test his devices. Within the story, Chrys serves as one of Ash's classmates and friends at the Pokémon School, representing the archetype of the tech expert in the group. His knowledge and analytical skills frequently help the class solve problems, such as when he hacked a shopping mall's security system to rescue Pikachu from Team Rocket during a blackout. He also supports his friends on their island challenges and various adventures, offering technical insights and strategic advice.

Chrys shares a close bond with his fellow students, including Ash, Lillie, Kiawe, Mallow, and Lana. His relationship with Professor Kukui is also significant, with the professor serving as a mentor. A key relationship is with his cousin Marlon, who is a scientist and the director of the Hokulani Observatory on Ula'ula Island; Chrys greatly respects Marlon's knowledge and skills as a Pokémon Trainer. On a lighter note, his Togedemaru has a noticeable crush on Ash's Pikachu, a running gag that adds a charming dynamic to its interactions with the group.

Chrys experiences notable development over the course of the series. One significant arc involves a misunderstanding where he believes his family is moving away from Melemele Island, leading him to behave erratically out of sadness and fear of leaving his friends. When the truth is revealed that he is only moving a few houses away, he learns a valuable lesson about the importance of honesty and communication, with his friends ultimately forgiving him and celebrating his decision to stay. As a parting gift, Ash helps him catch a Grubbin, which later evolves into a Charjabug. This Charjabug becomes a new project for Chrys, fulfilling his goal to raise and evolve it. He eventually succeeds in evolving his Charjabug into a Vikavolt, achieving this milestone before a rival trainer and expressing immense pride and joy in his Pokémon's growth.

In terms of notable abilities, Chrys is a competent Trainer specializing in Electric-type Pokémon, using their abilities in synergy with his inventions. His primary battling technique involves using Togedemaru's Lightning Rod ability to absorb electric attacks, thereby powering up Togedemaru's own moves. He is also skilled in using Z-Moves, working to master the technique with his Pokémon by synchronizing his poses with their attacks. However, his most defining ability is his outstanding technological prowess, which includes programming, hacking, and building machinery, cementing his role as the inventor and problem-solver of the group.