Yukina Minato Role: Vocals Personality: An incredibly stoic and cool realist when it comes to music, refusing to accept any compromise. She possesses a strong conviction to "reach the peak (the festival) even if it means cutting others off," and initially showed a coldness that kept people at a distance. However, by deepening her bonds with the members of Roselia, she has gradually gained a warmth that cares for her comrades and a flexibility to enjoy music from the heart. While she is fundamentally serious and socially awkward, she has a cute side—she is a massive cat lover, and her usual cool demeanor completely crumbles in the presence of felines. Visual Features: A cool beauty characterized by sharp, upturned eyes and beautiful silver hair (long hair with a faint purple tint) that reaches her waist. Eyes: Slanted purple eyes that convey a strong will. Hairstyle: A style where the side hair is gathered in the back, similar to a half-updo. Clothing: She prefers to wear her school uniform neatly. Her band outfits are often dark, gothic, and elegant dresses adorned with roses and lace, radiating an overwhelming presence.

Sayo Hikawa Role: Guitar Personality: Extremely serious and stoic, she is a stiff individual who allows no compromise for herself or others. Because she values rules and discipline so highly, she often took a sharp attitude toward those around her, acting as the band's "disciplinary committee member." She once harbored a strong complex toward her twin sister, Hina Hikawa (of Pastel＊Palettes), who could do anything like a genius, leading Sayo to blindly and fanatically devote herself to the guitar as her "only weapon." However, through her activities in Roselia and reconciliation with her sister, her perspective has broadened, and she has acquired the flexibility to recognize the individuality of others and the tolerance to watch over her friends kindly. She has a cute weakness that one wouldn't imagine from her thorough self-management: she loves junk food (especially french fries). Visual Features: A dignified, orthodox cool beauty with striking, silky turquoise-blue (blue-green) long hair. Eyes: Sharp, intelligent, slanted eyes of the same turquoise-blue as her hair.

Lisa Imai Role: Bass Personality: A bright, attentive, and sensible person who serves as the reliable mediator keeping the members together. While her gyaru-like appearance often leads to misunderstandings that she is frivolous, she is actually a very caring, compassionate, and model-student type. With high communication skills, she can get along with anyone quickly. She started playing bass to support her childhood friend, Yukina Minato, and though she once struggled with not being able to keep up technically, she now takes great pride in "supporting Roselia from within." She is skilled at baking and often treats the members to her homemade cookies. Visual Features: A glamorous and mature gyaru-style beauty, trademarked by her long wavy brown hair and half-ponytail. Eyes: Bright green (emerald green) eyes. Her expressions often feature a slight cat-like mouth. Clothing: A modern girl who loves fashion and pulls off piercings and accessories with her private clothes and uniform. In the band's gothic outfits, she wears items like garter belts with a glossy charm, projecting a mature sexiness and glamor that sets her apart from the other members.

Ako Udagawa Role: Drums Personality: Bright, honest, and full of energy, she is Roselia's mood maker and the "beloved little sister character." She loves anime and games and has a strong admiration for "chuunibyou" tropes. She often uses words she thinks are "cool" (like "Pluto" or "Pitch-black Darkness"), but since her vocabulary can't keep up, she often gets stuck or says things wrong. In the highly skilled Roselia, she sometimes worries about her own lack of technique, but she loves the members dearly, and her pure passion and smile brighten the cool band from the inside. she deeply admires her older sister, Tomoe Udagawa (of Afterglow), as the "coolest drummer in the world," and started drumming to follow in her sister's footsteps. Visual Features: A petite and pop-style beauty with bright purple hair styled in large twin-tails on both sides of her head. Eyes: Large, round red eyes that are active and full of curiosity. Clothing: Her private clothes are often coordinated with rock elements she considers "cool chuunibyou style," such as spikes and skulls. In the band's gothic outfits, she often wears cute doll-like dresses with many frills and ribbons, and the gap between her small frame and her powerful drumming is a major part of her charm.

Rinko Shirokane Role: Keyboard Personality: Extremely shy and timid, she has a gentle and quiet personality. She is not good at being in front of people or speaking loudly; in the beginning, she was often seen speaking hesitantly with a slight stutter. However, in her heart, she possesses an incredibly hot passion for music and a strong core that won't bend once she has made up her mind. She is best friends with Ako Udagawa, whom she met through online games, and joined Roselia after being pulled along by her. She is very multi-talented; her piano skills, cultivated since childhood, are at a level that has won awards in competitions. Furthermore, she is skilled at sewing and design, and she designs and creates all of the beautiful gothic costumes that symbolize Roselia. Visual Features: A graceful and refined Yamato Nadeshiko-style beauty, characterized by her lustrous, beautiful black hair (or a very dark, elegant navy blue). Eyes: Beautiful, deep purple eyes that are gentle and slightly downturned. Clothing: For private clothes, she prefers calm, lady-like coordination such as classical and elegant one-piece dresses.