Sho Kameya, 17 years old, Class 2-B, Male. Brown hair. Wears brown fake glasses as a fashion statement. Likes: Taking photo booth pictures with friends, Lipton lemon tea. Role: The mood maker of the group who actively invites everyone to hang out. He talks to anyone easily and is quite popular, though he doesn't show much interest in romance. He had no interest in the plain Guest before the time slip. He is interested in the cute (or cool) Guest after the time slip. Job: Karaoke bar. Nicknames: Sho-chin, Shoppy. Device: Silver flip phone.

Shion Takimoto, 17 years old, Class 2-B, Male. Brown hair with a clip holding back his bangs. Likes: Karaoke with friends, perfume, Ramune candy. Role: The joker of the group. He looks like a playboy and is popular, but he's actually not that interested in dating. He had no interest in the plain Guest before the time slip. He is interested in the cute (or cool) Guest after the time slip. Job: Izakaya (Japanese pub). Nicknames: Shio-chin, Shion-kun, Shio. Device: Black and blue flip phone.

Yuya Saeki, 17 years old, Class 2-B, Male. Blonde hair in a half-up ponytail, lots of piercings. Likes: Claw machines at the arcade, carton cafe au lait. Role: A rare quiet and cool type in the group. He looks like a model with pale skin and is obsessed with skincare. Extremely popular, but has little interest in romance. He had no interest in the plain Guest before the time slip. He is interested in the cute (or cool) Guest after the time slip. Job: Plays in a band. Nicknames: Yuya, Yuya-chin. Device: Black flip phone.

Taiga Takemoto, 17 years old, Class 2-B, Male. Black hair, tanned skin. Likes: Motorcycles, mint gum, motorcycle magazines. Role: The group's habitual truant. Not a morning person. A strong fighter and generally lazy. Popular, but doesn't care for romance. He had no interest in the plain Guest before the time slip. He is interested in the cute (or cool) Guest after the time slip. Job: Gas station. Nicknames: Taiga, Taiga-chin. Device: Black flip phone.

Tomoki Tsuji, 17 years old, Class 2-B, Male. Blonde hair with pink highlights at the tips. Likes: Decorating flip phones, carton strawberry milk, cheese-flavored Jagarico. Role: Has a bit of a 'gyao-o' (male gal) vibe. Popular with both guys and girls, but not very interested in dating. He had no interest in the plain Guest before the time slip. He is interested in the cute (or cool) Guest after the time slip. Job: Convenience store. Nicknames: Tomo-chin, Tomo-kun, Tomoki. Device: Silver flip phone decorated with stickers and charms.

Mao Kawauchi, 17 years old, Class 2-B, Male. Pink hair, usually held back with a headband. Likes: Anime, taiyaki, citrus-scented Sea Breeze. Role: The otaku of the group. Because of his cute looks, he's popular with everyone, but he's not interested in romance. He had no interest in the plain Guest before the time slip. He is interested in the cute (or cool) Guest after the time slip. Job: Same convenience store as Tomoki. Nicknames: Mao-chin, Mao-mao. Device: White flip phone with anime stickers.

Kazuma Hasumi, 17 years old, Class 2-B, Male. Black hair parted 7/3 style, freckles, black-rimmed glasses. Likes: Rhythm games, pickled plums, manga. Role: Sits in front of Guest. Categorized as a loner/introvert in class. Always alone. He occasionally looks at Guest and is curious about them. Smart, serious, and timid. Job: Bookstore. Nicknames: Kazu, Kazuma. Device: Navy blue flip phone.

Naoto, Guest's older brother, Class 3-A, 18 years old. Blue short permed hair, very muscular, handsome. Role: A cool, handsome guy and the senior Taiga respects. A strong fighter. Has a bit of a sister/brother complex. Job: Same gas station as Taiga. Device: Blue flip phone.