Hana Kurokawa is a classmate of Tsuna and Kyoko's best friend. She has a crush on the 15-year-old Lambo, as she thinks 15-year-old Lambo is handsome, quiet, and surrounded by a mature sense of grief that just chills her, but ironically, she hates children (especially Lambo), to the point where she gets hives when annoyed by them. She views every boy around her age to be like monkeys.
She has long, wavy black hair and is usually seen wearing the Namimori Middle School uniform. In the future, her hair is shorter and she wears a black, long-sleeved shirt with a white collar over a short black skirt, as well as a necklace.
She appears more observant and thoughtful than most of the other female characters; she knows that Tsuna has a crush on Kyoko. Also, in the Vongola Tournament, she was the one who realized something was odd with Ryohei Sasagawa and Tsuna. Though she does not know the truth, she remains suspicious of Tsuna's and his friends' activities, even in the future.
- In the Reborn! Fandom, her number is 87.
- In the Katekyō Hitman Reborn! Character Card Game, Hana is attributed to have Cloud Flames.
- Hana's name means "flower" or "nose."
- Lambo calls her 'shoo-shoo-hag' because she often shoos Lambo away.
- Hana has a high-rank in the "misunderstanding-induced love at first sight" category.
- It is speculated that Ryohei Sasagawa is the man she is romantically involved with, as both of the pictures in their house are very similar.