"So, here you are... Why don't we see who the winds favor today, you...or me?"
"Alola! And alola once again! My name is Kahili. A few years ago, I was a champion of the island challenge, too. Just like you. I've been traveling the world to improve my skill as both a Trainer and as a golfer. When I heard that they'd made a Pokémon League in my own home region, I came flying back to serve Alola. Have a look at my fantastic Flying-type team!"
Upon being defeated
"It's frustrating to me as a member of the Elite Four, but it seems your strength is the real deal."
After being defeated
"You know...I think you'll bring a breath of fresh air to the Alola battle scene. I was honestly annoyed when Kukui kept pestering me to come here, but I'm glad I did."
Kahili debuted in SM110, where she was first seen escaping from a group of reporters trying to interview her. She had been on a losing streak lately and was doubting her skills at the sport of PokéGolf. She eventually wandered to the Pokémon School, where she met Ash and his classmates. Kahili agreed to show them what playing PokéGolf was like and took them to a PokéGolf course.
After a while, the Caddie Expert challenged Kahili to try out an extremely difficult hole, which was located on a high platform in a windy canyon. Kahili accepted the challenge, and with the help of her Toucannon, she managed to land the ball in the hole. With her self-esteem restored, she was later seen winning a golf competition on TV.
(Japanese: カツオKatsuo), a Toucannon, is Kahili's only known Pokémon. It has been her partner since her childhood, and assists her while playing PokéGolf.
Katsuo was annoyed with the Caddie Expert, and when he went on to talk about how he would have done things better, Katsuo would open its mouth on top of its head.
After Kahili arrives in Alola, she travels to Iki Town, where she visits Hala at his home and informs him that Tapu Lele had been spotted around Akala. Kahili reveals that shortly after arriving in Alola, she began investigating Melemele Island. At Melemele Meadow, she was attacked by two mysteriouscreatures that disappeared shortly after she tried to fight back. Kahili speculates that the mysterious creatures are the source of the guardian deities' rage.
Later, Kahili travels to the Ruins of Life, where she finds Sun and his friends in battle with Gladion, who had kidnapped Tapu Lele. Using her Pokémon and her golfing skills, Kahili distracted Gladion long enough to deliver a Z-Ring created by Hala to Sun. With the Z-Ring, Sun has his Litten, Dollar, use Inferno Overdrive to defeat Gladion's Type: Null. Believing Tapu Lele to be too weak to be useful for him, Gladion leaves it behind and leaves.
Afterward, Tapu Lele awakens, allowing Sun to deliver the Mirage Berry to it, successfully completing his task. As thanks for healing its injuries, Tapu Lele asks the group to allow it to test their strength. Kahili, Sun, Moon, and Kiawe accept and send out their Pokémon to face the guardian deity. Despite the combined effort of their attacks, Tapu Lele was too strong and easily blew their attacks away until Sun, refusing to give up, managed to get a hit in after Dollar evolved into a Torracat. While the attack didn't harm Tapu Lele, it acknowledged their determination and flew off. Kahili congratulated Sun and Moon for their hard work and told them they still had Tapu Bulu and Tapu Fini left.
The next day, at Konikoni City, Kahili and the others head to Mallow's restaurant to talk to Professor Kukui's wife, Professor Burnet, over a video phone. They talk to each other over the various cracks in the sky that have been spotted around Alola and speculate that Nebby may have been the cause for their appearance. After the conversation ended, Kahili headed back to Melemele Island to report to Hala.
Skarmory is Kahili's third known Pokémon. It was first used to keep its Trainer in the air above the Ruins of Life, allowing her to golf Oricorio's Poké Ball over to Sun. Later, it was used to battle Tapu Lele alongside Sun, Moon, and Kiawe's Pokémon. Despite their combined strength, the guardian deity proved to be too powerful until Dollar evolved into a Torracat.
Kahili being both a golfer and a Flying-type user may be a reference to the scoring system in golf, in which the terms birdie, eagle, albatross, and condor can describe how well a player has performed.
Kahili's golf club has colors based on the appearance of Toucannon.