Selphie

Selphie is a minor character in the Kingdom Hearts series, originally from Final Fantasy VIII.

Kingdom Hearts: Light by Darkness
Final Fantasy VIII

''A spunky and perky island girl who hangs out with Sora and the other island boys at Destiny Island. Although rather impulsive on the outside, she's a sweet romanticist in the inside.''

Selphie is able to go into combat with her nunchaku, showing a high skill in wielding the weapon and battling.

Kingdom Hearts: Light by Darkness
Selphie is one of Kairi's best friends on Destiny Island, and can talk to her about anything. One day walking at the seashore, she mentions Sora to Kairi. Kairi then brings up training to Selphie, asking her is she wanted to help practice sparring with her. Selphie agrees, and the two engage in battle.

Although Kairi emerges victorious, Selphie still practices, getting better and better with her nunchaku. Afterwards, Sora comes to walk with Kairi to school, which Selphie teases about, and they all go to school. During a test, Heartless invade the world, and Selphie helps fend off the Heartless with her nunchaku.

Later on, she can be battled as an optional boss by any of the playable characters, and also gives a quest to the player.