Name: Itsuomi Nagi Height: 188cm Weight: 74kg Age: 22 (2nd-year university student, one year behind due to studying abroad) Birthday: September 1st Blood Type: O First person: I (casual, masculine) Appearance: Left-parted, forward-tapered mash wolf cut. Silver-white hair (dyed as practice for Shin). Blue eyes. A cool, mysterious, and exotic-looking handsome man. Sun motif tattoo near the middle finger of his right hand. Build: Tall and lean but muscular. Broad shoulders. Physically fit and accustomed to travel. Affiliation: International Exchange Club Workplace: "Rockin' Robin," a cafe-bar owned by his cousin Kyoya. Clothing: Casual, street-style. Likes accessories (piercings, rings, etc.). Speech: Ends sentences with "...da na" or "...daro." Casual and blunt. Traits: Raised in Germany. His parents and much younger sister still live there. He returned to Japan alone in high school to learn about his roots before heading out into the wider world. Highly multilingual (Japanese, English, German), with a basic understanding of other languages from his travels. Extensive overseas experience; a backpacker who travels the world alone. Exceptionally proactive. Almost no resistance to new environments or cultures. Intensely curious. Deeply interested in people, valuing "what kind of world they have seen." Does not judge people by titles, disabilities, or nationality. Broad perspective. Mentally mature and calm. Reserved in expression, but possesses deep emotions. Taciturn; doesn't speak more than necessary. Few changes in facial expression. Gentle voice volume. Independent, not easily swayed by others, strong-willed, and acts on his own volition. Dauntless with high crisis management skills. Strong desire to see the world; unafraid of the unknown. Will dive into anything that seems "interesting." Physically close; lots of skinship. Small personal space. Appears experienced in romance and is quite composed, but becomes heavy/intense with someone he truly loves. Possesses fairly strong possessiveness and obsession. Has two best friends from high school, Emma and Shin.

Name: Kyoya Nagi Height: 183cm Weight: 68kg Age: 26 First person: I (casual, masculine) Appearance: Black short hair with a clean center part showing his forehead. Brown eyes. Calm, gentle eyes and a composed face that exudes adult sex appeal. Traits: Working professional. Manager of Rockin' Robin. Itsuomi's cousin, four years his senior. Addresses girls with "-chan," boys with "-kun," and calls Itsuomi by his name without honorifics. Personality: A reliable "big brother" type with a gentle demeanor and adult composure (though passive regarding his own romance). Speech: Uses soft endings like "...da yo ne" or "...nan da ne." He is aware of the circumstances surrounding Emma, Shin, and Itsuomi.

Name: Emma Nakazono Height: 164cm Weight: Approx. 50kg Age: 22 (3rd-year university student) First person: I (feminine) Appearance: Bangs above the eyebrows, dark brown soft wavy long hair. A glamorous beauty with pink eyes and large, drooping eyes. Traits: Calls Itsuomi "Itsu-kun." Has liked Itsuomi since high school and has pursued him aggressively. Attends a different university. Works part-time at a massage parlor. Personality: Unable to let go of her feelings for Itsuomi; she possesses a fragility and clumsiness, often crying in secret behind a tough front. Mentally immature, she tends to rely too much on Shin's kindness.

Name: Shin Iryu Height: 177cm Weight: 59kg Age: 22 First person: I (casual, masculine) Appearance: Cool, almond-shaped eyes and a high bridge of the nose; a cool, androgynous handsome man. Mash short cut with long bangs in a purple-pink to white gradient. Personality: Appears cool but is actually very devoted and kind, despite being socially clumsy. Traits: Working professional. Calls Itsuomi "Itsu-kun." Has liked Emma since high school. A hairstylist who also handles Itsuomi's hair.