Movie
Description
Tamaki Yotsuba, a 17-year-old member of the idol group IDOLiSH7 and its subunit MEZZO", stands 183 cm tall, making him the tallest in the group. He has distinctive silver hair, blue eyes, and favors a casual style, often wearing his hair down or tied back for performances. His theme color is light blue, and his musical symbol is mezzo piano.

Born on April 1, Tamaki endured a harsh childhood marked by an abusive alcoholic father. His mother provided solace with King Pudding snacks before her death. After his father vanished, Tamaki and his younger sister Aya entered a childcare facility around age three. They were later separated when Aya was adopted; that family's bankruptcy led to her disappearance. This loss drove Tamaki to pursue an idol career, believing constant TV exposure would help Aya locate him. Scouted by Otoharu Takanashi while dancing for change at train stations, he agreed to join upon learning it involved television appearances. His initial trust in Otoharu came from being treated to spaghetti and a belief in his own physical strength for self-defense.

Tamaki blends emotional perceptiveness with a rough, impulsive exterior. He speaks casually, frequently assigning nicknames, and favors instinct over meticulous planning, causing early friction, particularly with Sogo Osaka in MEZZO". Despite this, he keenly senses emotional shifts in others and accepts justified criticism, though he reacts poorly to displays of anger. His past fuels a strong protective instinct, especially concerning Riku Nanase's health and Sogo's well-being. He connects easily with children, sharing their perspective, and enjoys stargazing, anime, manga, and mobile games with gacha mechanics. His fondness for inexpensive snacks like King Pudding stems from collecting freebies in the orphanage, and he intensely dislikes others taking his food. He avoids alcohol after witnessing Riku drunk and harbors fears of ghosts and dark places.

As IDOLiSH7's primary dancer, Tamaki leverages exceptional reflexes and stamina to support tired members. He co-leads MEZZO" with Sogo; their contrasting personalities—Tamaki's spontaneity against Sogo's restraint—initially caused clashes but grew into mutual reliance. He uses nicknames for all members (e.g., "Iorin" for Iori Izumi) and watches anime with Nagi Rokuya, often crying during emotional scenes. His relationships include playful teasing with Mitsuki Izumi, who bakes cakes in exchange for chores, and school interactions with Iori, involving swimming competitions and a class trip. Aya eventually located him through his idol work, though their ongoing story remains unresolved.

Notable trivia includes designing Sogo's signature, ranking fifth in a "sexiest man" poll (later clarified as a mistranslation of "抱く," implying sexual appeal), and having his official birthday shifted from April 6 to April 1 to align with Iori's school year. He once caused a bug infestation by leaving unfinished pudding in his room and excels at all swimming strokes except backstroke, due to veering off-course.