Hanzaki is a light-skinned, short teenager with narrow black eyes and dark blonde hair that is straight in his fringe, but shorter and messy everywhere else. His Squad's uniform consists in a jet black jacket with turquoise stripes around the raised collar, along the zipper, around the hem and the wrists, and white ones around and inside the raised collar and on the outer side of the sleeves. There are also four white lines, arranged in two columns of two, to each side of the zipper. Above the topmost left white line is the B-rank logo with the Squad's position emblazoned on it. The attire is completed by jet black pants, boots, and a black cap with a turquoise visor, which he wears backwards.
Hanzaki comes across as a listless, low-energy individual with a penchant for emphasizing the more tiresome or anyway negative aspects of a task or situation, a habit he acquired from repeatedly taking challenges that exceed his ability. Nonetheless, he is passionate about Sniper practice and hones his skills diligently.
- Hanzaki likes omurice (Japanese-style omelette wrapped around rice), ice-cream, naps, and games.
- He was erroneously listed as being 16 years old in the Chapter 54 extra.
- The author revealed that he had originally planned to have Hanzaki be 17.
- Hanzaki was supposed to send a text to an unknown receiver (probably either Hisato Sasamori or Daichi Tsutsumi) after the end of his Squad's match against Tamakoma Second and Suwa Squad, but the scene ended up being scrapped. The text would have read: "Don't be mean to the Snipers (ФДФ)"
- The Border Briefing File indicates that Hanzaki's sister is older than him, while Q&A from volume 24 indicates that his sister is younger than him.
- World Trigger Manga — Chapter 87 (p. 13)
- World Trigger Manga — Chapter 89 (p. 11)
- World Trigger Manga — Chapter 124 (p. 8)
- Daisuke Ashihara: Q83: Why is Hanzaki so dull? A: Because he continues to challenge stages that exceed his ability.
Source: Border Briefing File, Page 297, Question 83
- World Trigger Manga — Vol. 11 Character Profiles
- World Trigger Manga — Border Briefing File (p. 169)
- World Trigger Manga — Vol. 7 Squad Profiles