Murasakimaru Yozora

is a supporting character of the series as Seika's grandmother and Sumire's older sister.

In the past, Yozora was the more successful between her and Sumire - always getting the highest grades, always getting into relationships and being the more popular of the two while being incredibly spoilt. She was cruel and rude to Sumire, always telling the shy girl to shut up whenever she was to go speak or sometimes physically abusing her younger sister such as "accidentally" tripping Sumire up. When Sumire committed suicide, Yozora immediately felt responsible for her sister's death causing her to change her attitude and become more responsible.

Now, as an elderly woman, she is much more responsible and is kind hearted, wise and sweet. Though still feeling responsible for her sister's death, she ensures that her daughter and granddaughters are well and ensures they don't go through what Sumire went through.

Personality
In the past, Yozora was the more successful between her and Sumire - always getting the highest grades, always getting into relationships and being the more popular of the two while being incredibly spoilt. She was cruel and rude to Sumire, always telling the shy girl to shut up whenever she was to go speak or sometimes physically abusing her younger sister such as "accidentally" tripping Sumire up. When Sumire committed suicide, Yozora immediately felt responsible for her sister's death causing her to change her attitude and become more responsible.

Now, as an elderly woman, she is much more responsible and is kind hearted, wise and sweet. Though still feeling responsible for her sister's death, she ensures that her daughter and granddaughters are well and ensures they don't go through what Sumire went through.