There should be affection between "sisters" and sisters, and there should be a kind of kinship linked by blood. After the sublimation and accumulation of time, this kind of feeling finally became a kind of affection, no less than the affection of parents for their children. The relationship between sisters cannot be chosen and changed. But this kind of feeling is also complicated, and it is not easier to understand than parents' feelings. Sister should take care of her, love and care for her like an elder. Sister is proud of her sister, and sister is proud of her sister.
"Sisterhood" means being as affectionate and righteous as sisters. ..