Yamabuki Renge

Renge meets our protagonist during the prologue, after the truck she was riding on almost runs him over. Instead of offering an apology, all she does is smirk at him before the truck continues on its way.

In a few words, Renge is a girl with too much time on her hands. Shortly after settling down, she starts playing practical jokes on everyone that crosses her path out of sheer boredom. This does not spare even the store owners in the commercial district. Her quick wit and convincing air of innocence has managed to get her out of trouble, but her true nature quickly becomes apparent to several members of the main cast. Nanano is particularly aware of how cruel some of her pranks can be.

Spoiler

It is later revealed that the reason behind her boredom is that she has a frail constitution, which prevents her from going to school. Aside from her routine check-ups, there's nothing to occupy Renge's time.

Kazuhiko's involvement in Renge's life begins to bring out urges to experience something beyond her usual routine. Her involvement with the other characters exponentially grows when she learns of the local legend of Hoshiuta, and becomes determined to discover the truth behind it when it is revealed that finding the Hoshiuta will grant that person one wish.

Personality-wise, Renge is usually serious and arrogant. Her trademark smirk is the clear giveaway that she's up to something. She loves being in an advantageous position, and won't hesitate to lie or trick people to get what she wants.