Lana

Lana (Japanese: スイレン Suiren) is a student at the Pokémon School on Melemele Island and one of Ash's classmates. She made her debut in Alola to New Adventure!.

History
Lana was a student at Samson Oak's Pokémon School on Melemele Island, where she lived with her twin sisters, Harper and Sarah. At one point, she rescued a wild Popplio from being harassed by a gang of Team Skull Grunts and nursed it back to health at a Pokémon Center, where the two became good friends.

Lana debuted in Alola to New Adventure, meeting Ash and Pikachu while fishing with Popplio on a Ride Lapras. She and Ash met again at the Pokémon School, where Ash decided to join her class to study the Pokémon of Alola under their teacher, Professor Kukui.

In The Guardian's Challenge, Lana participated in the surprise welcome party her class threw for Ash to celebrate his enrollment. She challenged Ash to a Pokémon swimming contest as his third "surprise", which Popplio won due to its superior swimming ability. She later bore witness to Ash and Pikachu's battle against Tapu Koko, the guardian deity of Melemele.

In SM005, Lana received help from Ash while training Popplio how to blow human-sized water balloons, revealing her dream to one day use them to explore the ocean depths and discover new undersea Pokémon. She was also chosen to give a class lecture on sea Pokémon, loaning Ash a fishing rod at her house and introducing him to her sisters. During the lecture, several of the class's Pokémon were caught in a net by Team Rocket, who intended to use the class's Ride Pokémon for their own ends and disregarded the others they had inadvertently caught, infuriating Lana. Together with Ash, she was able to bring the captured Pokémon to safety destroy Team Rocket's hot air balloon by using Popplio's water balloons.

Character
Lana is a calm and gentle girl who cares deeply for Pokémon, particularly Water-types that inhabit the sea. As such, she enjoys many seafaring activities such as fishing while riding on Lapras. While sincere most of the time, she also has a playful side, oftentimes telling outrageous jokes such as being able to catch Legendary Pokémon like Kyogre. She is additionally shown to become aggravated and flustered when dealing with her unruly younger sisters. Her love for Pokémon runs deep to the point where she grows incensed at the sight of cruelty against Pokémon, speaking in a hushed tone of voice and shooting an icy glare towards the aggressor(s).