One of the four core protagonists of Eternal Storm and plays a prominent role from Eternal Rain: REVISTED into following arcs.

Bio:
Shiori never knew her mother, her father bailed when she was still a baby, and she only had her older sister, Kita, for a long time while they were in and out of shelters.
Sweet, humble and outgoing, she loves her friends, and hates it when anything bad happens to them. She can be a bit of a crybaby, and she crumbles under stress.

Relationships with other OCs:
Kita - her big sis, who she admires.
Atsuko - They don't always get along, but Shiori considers her a friend.
Takeshi - She respects him.
Reka - She feels indebted to him for always protecting her.
Toshirou - Her friend. He's funny and encouraging.
Sora - She has a crush on him.
Nasim - They get along okay, but Nasim can be overly mission- and position-oriented.
Takumi - Once she gets past his cold and impersonal front, they become friends.
Taki (Kobayashi) - Her friend and someone she feels a duty to protect.
Nikkou - [SPOILER]