Buneary

 is a Pokemon character that appears in NAOSTH.

Childhood
There is nothing on Buneary's childhood.

Helped by the Knothole Freedom Fighters
While the Knothole Freedom Fighters were looking for Mobians to recruit in the Mystic Ruins area, they came across an injured Buneary. Of course, they take her (it's a female Buneary) back to their HQ and nurse her back to health. After that, they release her back to the Mystic Ruins, much to the disappointment of Tails. However, it's unknown for now as to what attacked the Buneary.

Return as Lopunny
Much later in the story, while Tails is being attacked by SWATbots, Buneary makes a surprise appearance and saves Tails. To Tails' delight, he sees that Buneary had actually evolved into Lopunny and was apparently returning the favor from when the Knothole Freedom Fighters saved her life. Lopunny stays around for a while longer to help out the Freedom Fighters, but she later goes back home ot the Mystic Ruins and never appears in the story again.

Personality
Buneary is evidently quite gracious to those who help her in her time of need, repaying them generously.