TV-Series
Description
Taki Shiina is a first-year student at Hanasakigawa Girls' Academy, serving as drummer and primary composer for the band MyGO!!!!!. She previously played drums in the band CRYCHIC before its disbandment. Her appearance features long, straight mauve-toned dark brown hair tucked behind her ears, with long bangs reaching her eyes. She possesses sharp pinkish-purple eyes, thin arched brows, and a distinctive mole beneath her left eye—known in Japanese folklore as a "nakibokuro" or tear mole, associated with sensitivity or a life marked by sorrow. Her yin sanpaku eyes, characterized by visible white beneath the irises, are another trait linked to tragic folklore symbolism. Casual attire typically includes a black shirt under a white coat, a denim miniskirt, and black sneakers, often accessorized by a triangular earring on her right ear.

She lives with her older sister Maki, four years her senior. Maki was a highly accomplished trumpet player and president of Haneoka Girls' High School's brass band, later continuing in a competitive orchestra. Taki initially played trumpet in Haneoka's middle school brass band but switched to drums and transferred to Hanasakigawa for high school to avoid being overshadowed by her sister's reputation and escape comparisons. She joined CRYCHIC at her sister's and Sakiko Togawa's recommendation. Following CRYCHIC's breakup, she began learning DeskTop Music (DTM) composition and took a part-time job at the live music venue RiNG to deepen her understanding of bands. She struggles with a severe inferiority complex, frequently comparing herself unfavorably to Maki and former bandmate Sakiko, leading to periods of depression and overexertion like skipping meals or sleep while composing.

Her personality presents a blunt, antisocial exterior and short temper, causing friction with others—particularly bandmate Anon Chihaya, whom she frequently dismisses. Preferring solitude and described as a "lone wolf," she nonetheless exhibits fierce loyalty to those she accepts, especially vocalist Tomori Takamatsu. Taki's devotion to Tomori stems from Tomori's lyrics providing validation through the phrase "It's all right for me to be alive." Despite this connection, Taki struggles to express her emotions openly due to self-hatred and fears of vulnerability, viewing her desire to perform with Tomori as "selfish." She finds peace and happiness primarily during live performances.

Her hobbies include collecting panda merchandise, reflected in her phone wallpaper, profile picture, and bedroom decor. She enjoys solo karaoke and dislikes shiitake mushrooms and shirataki noodles due to childhood teasing about the similarity between their names and hers. Her birthday is August 9 (8/9), which in Japanese wordplay reads as "yaku," meaning misfortune or disaster. This is referenced in-universe when she draws an omikuji (fortune slip) marked "kyo" (misfortune). She stands 156 cm tall, sharing this height with several other franchise characters.

Taki uses the stage name "Rikki" in Ave Mujica-related contexts, a nickname derived from Anon's reading of the kanji in her name. In symbolic portrayals like Ave Mujica's key visual, her panda representation appears obscured, worn, or dirty—contrasting with other characters' stuffed animals and hinting at her perceived emotional burdens.