Natsuko Nikaido

Natsuko Nikaido (二階堂 夏子) is a main character from Swap⇔Swap. After bumping into Haruko, they learn that they can swap bodies with each other by kissing.

Appearance
She originally had black hair, but dyed it blonde. She is sometimes referred as a gyaru. She is usually seen wearing her school uniform with the top button undone, and a pink jacket.

Personality
Contrary to her flashy looks, she is surprisingly pure. She cannot deal with men. She believes kisses are special, and they should not be swapping and kissing so casually. In contrast to Haruko, she does poorly in her studies, but is good at cooking. She is also allergic to cats, and is envious that her friends have siblings, as she is an only child.

Trivia

 * Her name is very similar to Haruko's name.
 * Their given names are based on seasons. Haruko's first character is Spring (春) while Natsuko's is Summer (夏). Both names also end with ko (子).
 * Their family names start with a kanji for a number. Ichi (一) is one, while Ni (二) is two.