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恋愛曲線

by Fuboku Kosakai

A letter sends a friend a sinister wedding gift: a love curve.

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Original language: JapaneseLevel: Intermediate3,570 characters · ≈ 14 minSource: 青空文库

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Sample: three-line reading

Each word has its meaning in this sentence underneath, and each sentence has a full translation. Read the original and glance down only when you need to.

親愛なるdear (formal letter opening)ＡA (name initial)君Mr./you (friendly address to a male)
Dear Mr. A,
君のyour一代のof a lifetime盛典をthe grand celebration (object)祝するto celebrateためにin order to僕はI (topic)今now僕のmy心からなるcoming from the heart記念品としてas a commemorative gift恋愛曲線なるものをa thing called 'Love Curve' (object)送ろうとして居るam about to send
To celebrate the great day of your life, I am now about to send you a thing called 'Love Curve' as a gift from my heart.
かようなsuch; like this贈り物はgift (topic)結婚の際はon the occasion of a wedding勿論のことnot to mention; let aloneその他はas for other cases如何なる場合に於てもin any case whatsoever日本は愚かnot to mention Japan支那でもor China西洋でもor the West否nay; no世界開闢以来since the beginning of the world未だ曾てnever before何人によってもby anyone試みられなかったwas not triedであろうとwould probably be僕はI (topic)大にgreatly得意をpride (object)感ぜざるを得ないcannot help feeling
I cannot help feeling very proud, thinking that such a gift has never been tried by anyone since the beginning of the world—not only for weddings but in any other case, not to mention Japan, China, or the West.
貧乏なpoor一介のmere; humble医学者たるbeing a medical scholar僕がI (subject)たといeven if己れのmy own全財産をentire fortune (object)傾けてspending/devoting買ったbought品であってもeven if it is an item百万長者のof a millionaire長男たるbeing the eldest son君にはto you決してnever満足をsatisfaction (object)与え得ないcannot giveだろうとthat it would be信じたbelieved僕はI (topic)熟考に熟考を重ねたafter repeated deliberation結果as a resultこのthis恋愛曲線をLove Curve (object)思いつきhit uponこれならばif it is this十二分にmore than enough君のyour心をheart (object)動かすことが出来るcan moveだろうとthat it probably would予想してanticipatingこのthis手紙をletter (object)書きながらもeven while writing僕はI (topic)生れてからsince being born始めてfor the first time経験するほどのto the extent of experiencing胸のof the chest/heart高鳴りをpounding (object)覚えつゝあるam feelingのだ(explanatory emphasis)
I am a poor medical scholar. Even if I spent all my money on a present, I believed it would never satisfy you, the eldest son of a millionaire. After much thought, I hit upon this Love Curve. I expect it can move your heart very much. Even as I write this letter, my heart beats fast as never before in my life.

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About the book

Renai Kyokusen (The Love Curve) is a short story by Fuboku Kosakai. The opening passage held in this library takes the form of a letter to a friend, in which the writer sends a wedding gift called a 'love curve.' It offers a glimpse into how the story begins.

Cultural notes (selection)

Background a translation can’t carry: social roles, history and allusions. While reading, tap “Note” at the end of a sentence to see them all.

支那 History

「支那」 is a term used in modern-era Japan to refer to China. The word is regarded in China as derogatory, and after World War II its use was discontinued by the Japanese government and mainstream media.

百万長者 Social role

In Japanese this refers to a rich person with assets of over one million yen; it was a common term in modern Japan for the extremely wealthy. Here it forms a contrast in wealth with the “poor, humble medical scholar” (貧乏な一介の医学者).

恋愛曲線 Style

The title is also the name of a gift: the protagonist turns “love” into a recording curve of the heart and gives it to his rival in love.

About the author

Kosakai Mitsuji (8 October 1890 – 1 April 1929), better known by the pen name Kosakai Fuboku, was a Japanese medical scientist and crime writer.

Summary prepared with AI from Wikipedia: 恋愛曲線 (CC BY-SA)

How the glosses are made

Word glosses and sentence translations are generated in context by AI models (DeepSeek and Zhipu GLM), and every word is checked to have a gloss. AI can make mistakes; you can report problems from the book page.

FAQ

Is this the original text?

Yes. The library holds the opening section of the public-domain original, taken from 青空文库.

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What level is it?

This one is marked “Intermediate”. Every word is glossed, so you can keep reading even with a small vocabulary.

Can I use another gloss language?

English and Chinese glosses are prepared in advance; signed-in readers can generate other languages.

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