Satsuki Tennoji

Satsuki Tennoji is an OC created by Avnore. She attends Sancta Caecilia Girls' Academy as a 2nd-year student, and as a member of the idol band Zenonia, she plays the shamisen, a traditional Japanese intrument.

Appearance
Satsuki has a tall stature, measuring well over the average height for her demographic. She has a lithe frame, but it is usually hidden as she purposefully coordinates her outfits with multiple layers. She has long lilac hair partially tied with a lily hair tie into a side-ponytail that reaches her lower back and fades into a light pink ombré. Her eyes, angular and cat-like, are bright green.

At school, she wears the dark Sancta Caecilia uniform neatly done up, albeit layered atop a black turtleneck sweater. She wears black translucent nylon tights and navy canvas shoes with lilac colored laces. Although only one of Satsuki's ears is usually visible, she has both of them pierced.

Personality
On the surface, Satsuki is kind toward all she meets; she gives compliments readily and often helps others without being asked. Despite her cryptic speech patterns and miscellaneous eccentricities, she has a calming aura that comforts those around her. This, along with her overall friendliness, has allowed her to form a wide social circle.

However, while less obvious to her acquaintances, Satsuki has a conspicuous habit of not asserting herself but, rather, adjusting her attitude to those around her. Although that isn't particularly bizarre in itself, in Satsuki's case, she goes so far as to molding her responses around what she believes the other party wants to hear rather than risk upsetting them by disagreeing.

Similarly, Satsuki rarely ever asks for help or asserts her own desires. She can often be found doing favors for others, but when it comes to her own feelings, Satsuki's emotional suppression is severe enough that even she herself isn't in touch with how she feels or what she wants. To that effect, she prefers to satisfy others before herself, whether it be through giving compliments or simply lending an ear to listen to their troubles.

Background
WIP

Although Satsuki attends a Catholic school, her family runs the local Shinto shrine near Sancta Caecilia. As a result of her upbringing, Satsuki values a sense of purity above else, hence why she makes such an effort to maintain an almost saintly degree of amiability. During her early childhood, however, Satsuki's attempts to relate to her peers often backfired on her; though all she wanted was to befriend children her age, her tendency to shape her preferences around those of her classmates resulted in her being ostracized and deemed a "copycat".

Satsuki and Matsuri's families have been acquainted with each other for generations, so the two girls have been acquainted since childhood. However, they only became friends in middle school after a series of hospital visits headed by Satsuki's family with the goal of treating Matsuri's illness through holistic means, particularly by giving her the company of someone her own age. While Matsuri was initially skeptical of Satsuki considering her history of superficial friendships, they bonded over a mutual love of idols, and it was during this time that Satsuki realized that she wanted to be a source of joy to others in the same manner that idols were to Matsuri.

Matsuri Hinagami
As they've known each other for years, Satsuki and Matsuri are close not only as band mates, but friends. Satsuki's feelings toward Matsuri surpass the boundaries of simple friendship, but Satsuki herself is oblivious to this.

Ichika Koganei
As her senior and unit mate, Satsuki feels a strong obligation to protect Ichika from harm. Much like Matsuri, Satsuki finds a certain solace in Ichika's positivity but is reluctant to fully disclose her own problems for fear that it would be a heavy burden upon the highly empathetic Ichika. Instead, she prefers to present her "best self" to Ichika, as her optimism and innocence grounds Satsuki in some sense of normalcy.

Trivia

 * Satsuki refers to herself using the pronoun atakushi (あたくし).
 * Satsuki has a low tolerance to spicy food, but because she hides her reactions as much as possible, ironically, most of her friends think she actually likes it, much to Satsuki's vexation.