Makishi Akizuki, also called Maxi Akizuki, is a human female with long blonde hair often styled loose or in looped ponytails, blue eyes, and fair skin. Her signature ensemble features a white corset dress with a front-laced closure and blue collar, paired with a ruffled mini skirt. She completes the look with detached shoulder-length sleeves showcasing top lacing and wide blue cuffs trimmed in white lace, white knee-high boots, and a white beret edged in blue.

She pursues dual careers as both a popular idol and a best-selling author, achieving significant commercial success with her books. Driven by the ambition to become the top author in her field, her demanding schedule necessitates bodyguards or servants to manage commitments. Her frequent bids for attention are often cut short when staff remove her due to time pressures.

Her personality radiates self-centeredness, routinely describing herself as a "star that shines brighter than the Sun." This egotism fuels her belief in superior talent and status, leading her to dismiss or look down on others. She harbors a notable dislike for fellow author Kirihime Natsuno, engaging in rivalry and attempts to undermine her, though these efforts are often comically thwarted. She also displays a possible aversion to dogs.

As an idol, Makishi performs musical activities, including singing the ending theme "Lemonade Scandal" for her series and releasing the character mini album "Shining!!" Her public image extends to merchandise, such as premium maki-e stickers featuring her alongside other characters. Her surname, Akizuki, combines the Japanese words for "autumn" and "moon."