One of the four core protagonists of Eternal Storm and plays a prominent role in following arcs (Keyholder Chronicles, Keyholders' Legacy).

Bio:
Toshirou is the youngest child in a family of four. When Llania was forcing enlistment in the Guard, they fled from the Fire Gate, but returned after the war ended.
Toshirou is outgoing, fun-loving and determined. Though at times he can be clumsy, he stays positive and always does his best for his friends.

Relationships with other OCs:
Reka and Shuuichi - It's like he's got two protective big brothers -- plus his actual big brother.
Atsuko - They did not get along at first, but now their bickering is more playful.
Shiori - His friend. She's really nice.
Shiel - He's not the easiest person to talk to since he's so quiet, but he's a good guy.
Nasim - He doesn't like her or her bodyguard, Yousef, because they're arrogant.
Takumi - He's not the friendliest, but he's a really hard worker and tries his best to have their backs.
Taki (Kobayashi) - She's nice, but they don't interact much beyond Keyholder-ing.
Hideo - [SPOILER]