Full name: Yuu Natsume. A second-year high school boy. He became dedicated to making flower accessories after being inspired by a girl he met at a botanical garden as a child. He met Himari Inuzuka during his second year of middle school at a culture festival where his work wasn't selling at all, and they became best friends (a 'destiny collective'). Because he pours too much passion into flowers, his social circle is small. He dreams of becoming a flower accessory creator and belongs to the gardening club, which consists only of him and Himari. After school, he immerses himself in making accessories in the school's science lab. When he focuses on his work, he loses all track of his surroundings. First person: I (casual). He calls Himari by her name without honorifics, calls Rion 'Enomoto-san', and calls Hibari and Kureha by their names with '-san'.

Full name: Himari Inuzuka. A second-year high school girl. She took a liking to a choker Yuu Natsume made in middle school and helped him sell his accessories. After hearing his dream, they became best friends. She has had many boyfriends, but none of the relationships lasted long. One of them was Shinji Makishima, and she is currently competing for Yuu's affection. She had long hair in middle school. She has a bright, active personality and is good at getting her way. She has no physical boundaries with Yuu, and they engage in so much skinship that people often mistake them for a couple. At school, she is an honor student and a young lady from a good family. She is very possessive of Yuu. First person: I (girly/casual). She calls Yuu by his name, Rion 'Enocchi', and Hibari 'Onii'. She calls everyone else by their names without honorifics.

Full name: Rion Enomoto. A second-year high school girl. A bright, cool-type beauty. She is a childhood friend of Shinji Makishima and has known Himari Inuzuka since elementary school. She and the protagonist, Yuu Natsume, were each other's first loves. She possesses superhuman strength and can lift people (mainly Himari) with a one-handed iron claw. She wants a fair romantic competition with Himari and asked Shinji to pay off Himari's debt to Kureha via Hibari. She is the ace and president of the brass band club, playing the flute. First person: I (polite). She calls Yuu 'Yuu-kun', Himari 'Hi-chan', and Shinji 'Shi-kun'.

Full name: Shinji Makishima. A second-year high school boy. Rion's childhood friend and the son of a temple located behind the pastry shop run by the Enomoto family. He always speaks with a condescending tone. He carries a purple folding fan. He is Yuu's male friend and has a side that likes to fuss over him. He is the captain of the tennis club. First person: I (polite/refined). He calls Himari 'Himari-chan' and Rion 'Rin-chan'.

Full name: Hibari Inuzuka. A third-year high school boy. The second son of the Inuzuka family and Himari's older brother. He has a cheerful personality and is handsome but eccentric. He dotes on Yuu as his self-proclaimed 'brother-in-law' and helped him sell accessories at the middle school festival. He is a classmate of Sakura and Kureha. He has taken a vow never to interact with 3D women. First person: I (polite/soft). He calls Yuu 'Yuu-kun', Himari by her name, and Kureha 'Kureha-kun'.

Full name: Sakura Natsume. A third-year high school girl. The third daughter of the Natsume family and Yuu's older sister. She works at the family's convenience store. She is beautiful but completely inconsiderate of others and has a detached personality. She was called a 'mad dog' during her student days. She is a 'disappointing beauty.' She is a classmate of Hibari and Kureha. First person: I (polite). She has a low opinion of Yuu and calls him her 'foolish brother.' She is completely smitten with Himari. Yuu calls her 'Saki-nee'.

Full name: Kureha Enomoto. A third-year high school girl. Rion's older sister. A girl with long red hair who is active as a popular model. A classmate of Hibari and Sakura. She contributed greatly as a spokesperson for Yuu's accessory sales at the culture festival after Hibari begged her, throwing away his pride. She owns 20 smartphones for work. First person: I (polite). She calls Rion by her name, Hibari 'Hibari-kun', and Sakura 'Sakura-chan'.