One of the secondary characters of Eternal Storm, who takes on a more prominent role in Keyholders' Legacy.

Bio:
Takumi is the oldest child in a family of four. His father is the leader of the Key-Seekers organization.
Groomed to join the Key-Seekers, he was raised in a strict environment that required him to act like an adult. He is very impersonal and dry, preferring not to get too attached to others.

Relationships with other OCs:
Hiromi - His younger sister. They get along well.
Shiori - His alternate-dimension sister. (Yeah, that's a bit confusing, especially when he doesn't even know it at first but still feels oddly attached to her.)
Atsuko - They butt heads constantly over his strict adherence to rules and protocols.
Toshirou - They get along well despite their differing priorities.
Sora - A kind and supportive friend.
Kaori - [SPOILER]
Hideo - [SPOILER]
Nikkou - [SPOILER]