姉妹 is a Chinese, Japanese Kanji, and old Korean Hanja title for sisters.

Please note: It's kind of an uncommon title for a wall scroll.

御兄弟 is a Japanese honorific title for brothers and sisters or siblings.

Please note: It's kind of an uncommon title for a wall scroll.

This literally means forever sisters in Chinese.

This is a weird phrase in Chinese, as by default, sisters are forever. I added this because people were searching for it.

心の姉妹 is “heart of sisters,” “soul sisters,” or “sisters of the heart.”

This can be used for actual sisters to celebrate the heartfelt love they feel.

It can even be used by two women who feel a connection as if they are sisters.

姐妹關繫 is an expression that means “sisterhood.”

Literally, this means “sisters relationship.”

This literally means “sister flowers,” but it is really a way to say “soul sisters” like “soul mates.”

兄弟 is a Chinese, Japanese Kanji, and old Korean Hanja title for brothers.

Some notes: It's kind of an uncommon title for a wall scroll.
In Chinese, this is usually understood as brothers. In Japanese, it can extend to mean “brothers and sisters” or siblings.

兄姉 means “brother and sister,” in Japanese.

There's no perfect way to say it in calligraphy, but this is probably the best way.

手足情 is the love between siblings.

When you love, protect, care for, and have a deep bond that only brothers or sisters can.

The actual translation is “Hand and Foot,” but the relationship between brothers or sisters is like that of hands and feet. They belong together and complete the body. Even though this says “hand and foot,” it will always be read with the brotherly and sisterly love meaning in Chinese.

Note: During the past 20 years, the “One child policy” in China is slowly making this term obsolete.

黑闇女 is a Buddhist title that means “dark sister,” “dark one,” or “dark woman.”

There are two sisters:
One is the deva, 功德女 (“merit” or “achieving”), who causes people to acquire wealth.
The other is the “dark one,” 黑闇女, which causes people to spend and waste.

These sisters always accompany each other.

一視同仁 is how to write “universal benevolence.” This is also how to express the idea that you see all people the same.

If you are kind and charitable to everyone, this is the best way to state that virtue. It is the essence of being impartial to all mankind, regardless of social standing, background, race, sex, etc. You do not judge others, but instead, you see them eye to eye on the same level as you.

See Also:  Benevolence | Compassion | Equality | Justice | Right Decision | Selflessness | Work Unselfishly for the Common

姐妹情 is one way to say “sisterhood.”

Literally, this means “sisters feeling, emotion, passion, or situation.”

This Japanese term means “Sisterhood,” “Sisterly Love,” or “Sister Love.”

婦人會 is a Japanese title for women's group or association.

婦女會 is an expression that means “sisterhood” as in a women's association, club, or group.

The first two characters mean “women.”

The last character means to assemble, to meet, to gather, to see, union, group, or association.

妹 is the single character title for a younger sister.

In colloquial Japanese speech, this can be a way to say, darling, dear, honey, or my betrothed (only used when referring to a woman).

In Japanese, this can be the female given name Mai.

In Chinese, you will generally see this used in double form, “妹妹” or “mei mei” when referring to a younger sister.