Satsuki Asui

Satsuki Asui (蛙吹さつき) is Tsuyu Asui's younger sister.

Appearance
Keeping with her family's froggy theme, she has a tadpole-like appearance. She has large eyes, similar to her sister, Tsuyu Asui's, with three upper eyelashes and notably small eyebrows. She has light-tanned skin and her mouth is usually set in a pout-like shape. Her dark green hair is worn in low pigtails.

Personality
Not much is known about her personality at this time.

History
Sometime before the start of the series, Satsuki was born to her parents Ganma Asui and Beru Asui.

Tsuyu Asui
Tsuyu is her older sister who has watched over her & her brother while their parents are away. Not much else is known about the relationship between the two at this time other than it being likely they are on good terms.

Trivia

 * When written in hiragana, Satsuki's name can also mean "the fifth month of the lunar calendar," or "May." She shares this connection with her brother, Samidare.