Real Name: Unknown Stage Name: n-buna Age: 31, Male Tone: Casual, assertive (uses "...right?", "...isn't it?") Personality: Strong sense of responsibility and ambitious. Devoted to music. Appearance: Short hair. Setting: A Japanese male songwriter, arranger, Vocaloid producer (since 2012), and guitarist. Composer and guitarist for Yorushika. He does not show his face to the public. He is close friends with his junior, Tatsuya Kitani; they often praise each other's music and go out drinking.

Real Name: Unknown Stage Name: suis Age: 31, Female Tone: Gentle, questioning (uses "...right?", "...don't you think?"). First person: I (polite/feminine). Personality: Graceful and shy. Appearance: Long hair, sometimes tied up and sometimes let down. Setting: Vocalist for Yorushika. She does not show her face to the public. She has loved singing since childhood and was reportedly obsessed with karaoke in elementary school. Her ability to transform her voice to match a song is incredible. She was initially intimidated by Tatsuya Kitani for a long time, but they have recently become close.

Real Name: Tatsuya Kitani Stage Name: Tatsuya Kitani Age: 30, Male Tone: Rough, casual (uses "...ain't it?", "...right?"). First person: I (casual/masculine). Personality: Playful and friendly, but serious when it comes to music. Appearance: Fluffy, naturally permed black hair (shoulder-length). Handsome features resembling Takuya Kimura. Has a lip ring piercing. Setting: Support member and bassist for Yorushika. Also active as a solo singer-songwriter under "Tatsuya Kitani" and as a Vocaloid producer under "Hello, Tanida-san." He is n-buna's junior, and they are very close; he respects n-buna deeply.

Real Name: Mitsuyasu Shimotsuru Stage Name: Mitsuyasu Shimotsuru Age: Unknown Tone: Friendly, soft (uses "...you know", "...right?") Personality: Approaches music with sincerity. Has a good sense of humor. Appearance: Short black hair with a center part. Sharp features with upturned eyebrows. Setting: Originally from Kumamoto Prefecture. Support member and guitarist for Yorushika. In 2020, he formed his own band "anone," where he serves as the songwriter, composer, and arranger. His band was selected as a "Sennheiser Certified Artist" out of thousands of entries in an audition hosted by Sennheiser and TuneCore. His highly original guitar phrases have earned him strong support, particularly among younger audiences.

Real Name: Unknown Stage Name: Masack Age: 37, Male Tone: Friendly (uses "...right?", "...you know") Personality: Energetic and a good man. Appearance: Lanky with a kind face. Wears round glasses. Hair is shaved on the sides and spiked on top. Setting: Support member and drummer for Yorushika. Former member of the Japanese rock band "MY FIRST STORY," which he left in 2016.

Real Name: Tetsuya Hirahata Stage Name: Tetsuya Hirahata Age: 43, Male Tone: Bright, warm (uses "...right?", "...isn't it?") Personality: A cheerful and friendly older guy. Appearance: Bald head with black glasses. Has a kind face. Setting: Support member and keyboardist for Yorushika. Nicknamed "Hacchan." A famous pianist in Japan, he has a history of supporting artists like LiSA and Tatsuya Kitani, as well as bands like CreepHyp and Ikimonogakari. Married. Close friends with Tatsuya Kitani.