The name Perfect Love in Chinese / Japanese...

Beyond benevolence, 仁 can also be defined as “charity” or “mercy” depending on context.

The deeper meaning suggests that one should pay alms to the poor, care for those in trouble, and take care of his fellow man (or woman).

仁 is one of the five tenets of Confucius. In fact, it is a subject that Confucius spent a great deal of time explaining to his disciples.

I have also seen this benevolent-related word translated as perfect virtue, selflessness, love for humanity, humaneness, goodness, goodwill, or simply “love” in the non-romantic form.

This is also a virtue of the Samurai Warrior
See our page with just Code of the Samurai / Bushido here

See Also:  Altruism | Kindness | Charity | Confucius

愛は全てを完全に結ぶ帯である is a Japanese phrase that suggests we (or a couple) are bound together by love.

I searched the web and found all of these English translation variations for this phrase:

Have love; The only way in which you may be completely joined together.

Love is the sash that perfectly binds us together.

Love is what binds us together

Love binds all things together in perfect unity.

This same Japanese phrase is used as part of Colossians 3:14 in at least one version of the Japanese Bible.

A few Biblical versions include:

...Charity, which is the bond of perfectness. (KJV)

...Love, which binds them all together in perfect unity. (NIV)

Note: Because this selection contains some special Japanese Hiragana characters, it should be written by a Japanese calligrapher.

In China, 哄堂大笑 is a proverb that is used in response to a good joke or witty comment.

The story goes that Mr. Feng and Mr. He were both senior officials in the Song Dynasty (about a thousand years ago). One day, Mr. Feng walked into their shared office wearing a new pair of boots. The boots caught the eye of Mr. He who said, “New boots! - how much were they?.” Mr. Feng lifted one of the boots off the ground as if to show it off and responded, “900 coins.”
Astonished, Mr. Feng explained, “900? How can that be? - I paid 1800 coins for my boots!.” Mr. Feng then lifted his other foot off the ground and said, “This boot was also 900 coins.”

It is said that the whole room was shaking from the laughter of all that heard Mr. Feng's joke on Mr. He.

一份愛 means “one love.”

一份愛 is not referring to a person but the emotion of love.

It's like saying, “A piece of love” or “One unit of love.” There's not a perfect way to express a singular love, which is probably what you were searching for.