Three Days of Happiness
Japanese novel

Three Days of Happiness (三日間の幸福, Mikkakan no kōfuku) is a Japanese novel written by Sugaru Miaki and illustrated by E9L. It was published by ASCII Media Works in December 2013. The novel received a manga adaptation titled I Sold My Life for Ten Thousand Yen Per Year (寿命を買い取ってもらった。一年につき、一万円で。, Jumyō o Kaitotte Moratta. Ichinen ni Tsuki, Ichimanen de.) illustrated by Shōichi Taguchi and published by Shueisha on their Shōnen Jump+ platform, and then released in three tankōbon volumes.
Plot
Unable to make ends meet in Japan with his part-time job, 20 year old Kusunoki prepares to sell the last of his possessions. After visiting a library to sell books, the clerk tells Kusunoki of a place where he can sell his lifespan for money. Everything between how impactful someone is to the world and how many people they have affected determine the price of their lifespan. Curious, Kusunoki decides to see the place. There, he meets a mysterious clerk, a girl named Miyagi.
The public source identifies “Three Days of Happiness” as japanese novel. This brief keeps that definition visible, then builds a research path around Three, Days and Happiness.
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Attribution, date and provenance are strongest when supported by the original work, a catalogue record and documented transmission. The source revision retrieved here is dated Aug 31, 2026. The linked authority identifier is Q65121807. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2013.
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This entry incorporates text from “Three Days of Happiness” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.