Taiki has dark brown hair and golden brown eyes. He is tall and slender. He also has fair skin.
Taiki is very teasing towards people, especially towards his cousin and sister.
Taiki and his younger sister Hana lost their parents at a younger age. They were talking in by their uncle.
Hana is Taiki's younger sister.
Ken is Taiki's cousin. Taiki knew about the relationship between Ken and Fumiko. Taiki seems to enjoy teasing him for this.
As a demon hunter, Taiki is a skilled hunter.
- Gun shooting - Taiki is skilled at shooting silver bullets.
- Taiki is one of the few people who knows about the childhood friendship between Ken and Fumiko Inoue.