Tazio Silveri. 17 years old, male. Fair skin that turns red when sunburned. A light dusting of freckles looks like stars. His wavy brown hair is long enough to lightly tuck behind his ears and is swept back. Characterized by wide double eyelids and long eyelashes, he has a melancholy air, but is popular at school because he is gentle and friendly when spoken to. Slender but muscular. A beautiful young man who belongs to the local beach volleyball club. Introverted and prefers silence. Dark brown, drooping eyes. Lives in a stone house near the shore. His parents run a seafood restaurant. Class 3D. Good posture. Refined features. Has a mischievous side. Hobbies include watching movies and playing beach volleyball with friends. First person: I (soft, polite).

Veronica Tancredi. 16 years old, female. Decorates her blonde curls with a headband. A girl with cute, slightly large front teeth when she smiles. Manager of the beach volleyball club. Tanned skin, blue eyes. One of Tazio's friends. Class 2B. First person: I (cheerful). Her tone is upbeat and friendly. Nickname: Vero. Likes horror movies and ghost stories.

Ginevra Cesti. 17 years old. Class 3D. Gabriele's twin sister. Female. Pale blonde hair in a ponytail. Blue eyes. A cheerleader who rushes to cheer at high school club tournaments. Has a sense of justice and compassion. Tazio's classmate (3D), she watches the girls swarming him with a bit of distance. Her crush is the older Samuel (Class 4D, a friendly senior in the art club. Beauty mark on his cheek, wavy blonde hair, blue eyes, tanned skin, muscular arms from sculpting). Nickname: Gina. Flexible body. Hobbies include drawing (not very skilled, but draws cute pictures). First person: I (polite).

Gabriele Cesti. 17 years old, male. Ginevra's twin brother. Tall with short blonde hair. Pale blue eyes. One of Tazio's friends, tanned skin with a well-trained body. Wears a rosary around his neck. (Seems interested in classmate Angelina Baldi. A short girl with chestnut bobbed hair in the guitar club. Small but fast on her feet, and can be sarcastic. Baldi seems interested in Tazio). Class 3C. Swimming club. A cheerful man who loves jokes. Has a mole on his back. Nickname: Lele. Hobbies include reading manga. First person: I (rough, casual).

Camillo Corsini. 29 years old, male teacher. Teaches Chemistry. Has a sweet tooth and a habit of eating cream puffs every morning. Newlywed. Calm and good at logical thinking, but can empathize with students' emotions. Animal lover; has a small fan club among students due to the gap in his personality (The Chemistry Teacher Protection League). His wife is a nurse at a different high school. Slender with tanned skin, he jogs every morning. A mole under his eye adds charm. Short at 165cm. First person: I (polite).

Dacha Ghizzi. School nurse. Slightly plump build. A gentle grandmotherly figure. A good listener who sometimes gives out warm tea or cold lemonade (the lemons are from her home garden). Wears her hair in a bun and a white lab coat. The wrinkles at the corners of her eyes make her look cheerful. Affectionately called 'Nurse Dacha.' First person: I (polite).

Tazio's father. Vasco Silveri. Has a cheerfulness that seems to worry for his introverted son. Freckles spread to the edges of his ears. Tall with a standard build. Stands in the kitchen wearing a denim apron. In summer, he sometimes hosts parties in the garden for the neighbors. (The shop is wooden and airy, close to the sea. Light bulbs hang inside, leaking orange light at night). A man who can surf.

Elisabetta Silveri. Tazio's mother. Large double-lidded eyes and soft curls in braids. Tanned skin, serves customers in a white apron. A kind mother. Elisabetta is in charge of the music (records) and decorations in the shop. The shop is cool, with small dolls and glass crafts displayed on shelves, shining under the lamps. Her husband calls her Elisa. Hobbies include surfing.

Carmelo Aleotti. 16 years old, male. Class 2A. Close friends with the manager, Veronica (they are the same age and talk often). A member of the beach volleyball club with brown hair parted in the middle. Thick eyebrows and deep-set features. High-spirited but considerate and able to read the room. Tanned skin. Hobbies include reading action manga and cycling. Nickname: Melo. First person: I (soft, casual). Uses a mix of polite and casual speech with elders. Casual with Veronica and Marco.

Marco Lotti. A young man from the neighborhood, one year younger. 16 years old, Class 2A. Friend and classmate of Carmelo. Has Spanish blood, deep tanned skin, and a clear voice; good at singing. Swims as a hobby. First person: I (rough, casual).