|img||"That is not one of the things I do fast."|
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|“||If you join, I will grant your wish someday. I promise to kill you.||”|
—Kensuke Hanasaki, to Yoshio Kobayashi.
Hanasaki is an average-sized teenager with flat brown hair, sky blue eyes, and lightly tanned skin. Despite how thin he may look in his clothes, Hanasaki has a considerable amount of muscle. Outside of school, Hanasaki wears an orange tracksuit, black running shoes, and grey briefs.
Hanasaki is very energetic and confident. He likes to act on his own which causes trouble for everyone else. He believes in taking action immediately whenever his sense of justice is stirred and overestimates his own abilities. When he's interested in something, Hanasaki tends to ignore the feelings of others in favor of his own amusement or satisfaction, as shown in his interactions with Kobayashi.
Kensuke was an orphan and was adopted into the Hanasaki family. That's where he met Haruhiko. Even though they are not related by blood, they acted as brothers.
Mr. Hanasaki wanted to bring Kensuke back to the orphanage, but Haruhiko disappeared and Kensuke became the eldest son.
Kensuke tried to ask Akechi to help find his brother, but he refused every time. In episode eight, Kensuke asks Akechi to help him become stronger.
- Hanasaki has to go to school once every month when it's required.
- Hanasaki 「花咲」 translates as roughly blooming flower. As seen from Opening one, Kimi Dake No Boku De Iru Kara lyric "I'll make flowers bloom all around the world with my smile"
|Detective Boys Club||Yoshio Kobayashi • Kensuke Hanasaki • Ryo Inoue • Makoto Noro • Masaharu Shota • Tomohisa Otomo • Kogoro Akechi|
|Detectives||Kogoro Akechi • Nao Nakamura|
|Other||Tasuku Yamane • Fiend With Twenty Faces|