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Three Days of Happiness
Completed

Three Days of Happiness

Ba ngày hạnh phúc, I sold my life for ten thousand yen per year., Mikkakan no Koufuku, Three Days of Happiness, สุข สาม วัน, 三日間の幸福, 三日間的幸福, 寿命を買い取ってもらった。一年につき、一万円で。
Native Language Japanese
Released 2013
Artist
Original Ch.: 16
Translated Ch.: 16
Rank: #219
Last Update: March 20, 2026
Original Pub.: ASCII Media Works
English Pub.: Yen Press
View: ? Views
9.8

Three Days of Happiness is a popular novel that blends Drama, Mature, Psychological and more. Written by the author Sugaru Miaki (Fafoo). A total of 16 chapters have been translated and the novel is complete.

Synopsis

Three Days of Happiness is a novel by Sugaru Miaki, also known as Fafoo. It’s a rewritten version of the story originally posted to 2ch.
The premise of the story revolves around a shop where one can sell away the remaining years of their life, and the consequences of doing so.
“I Say A Little Prayer” is a short related story which was posted along with the novel’s release. It spoils some things about the main story, but nothing major.

🕯️ System Interface: The “Nihilistic Hope” Protocol

Three Days of Happiness (originally titled Mikkakan no Koufuku) is a profound, standalone Japanese novel by Sugaru Miaki (also known as Fafoo). It is a haunting exploration of life’s value, regret, and the pursuit of meaning in the face of death.

The story follows Kusunoki, a 20-year-old man who has reached a dead end. Faced with poverty and a sense of absolute failure, he discovers a shop where people can sell their lifespan, time, or health for money. After learning his remaining 30 years are worth a measly 300,000 yen ($10,000 per year), he sells almost all of it, leaving himself with only three months to live.

Component Classification Tactical Implication
The Lifespan Shop Premise Life is priced based on “contribution to society” and “personal happiness.” Low value implies a future of misery.
The Observer Mechanic Miyagi, a girl from the shop, must watch Kusunoki to ensure he doesn’t commit crimes or cause trouble in his final days.
Invisible Presence Narrative Constraint Only the “seller” can see the Observer. This leads to social isolation but intense intimacy between the two leads.
Magical Realism Tone While there is a supernatural shop, the story is grounded in brutal, mundane reality and psychological depth.

📂 System Interface: The Status Window (Kusunoki)

Attribute Classification Description
Initial Value 10,000 ¥ / year Based on his projected future, he was destined for a life of mediocrity and insignificance.
Personality Cynical/Detached A former “gifted child” who fell into the trap of superiority complexes and procrastination.
Final Decision Sale of 30 days After finding meaning with Miyagi, his final 30 days become worth more than his entire 30-year life combined.
Social Status Non-entity To society, he is a “crazy person” talking to thin air; to himself, he is finally living.
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Editor's Note

⚠️ Emotional Hazard. This novel is heavily bittersweet. It deals with suicide, debt, and the crushing weight of unfulfilled potential.

The "Miyagi" Side Story. There is a related short story called "I Say A Little Prayer" that provides Miyagi's perspective. Readers recommend reading it after Chapter 10.

Manga Adaptation. Titled I Sold My Life for Ten Thousand Yen Per Year, the manga is highly praised for its art and is often considered a perfect companion to the novel.

Philosophical Weight. This isn't just a "tragedy"; it's a "thought experiment" on what makes a life "worthwhile."

*16 chapters of existential dread, a love story between two invisible people, and a conclusion that will haunt you. Complete — and best read in one sitting.*

Experience Curve

Ch. 1–4 (The Transaction): ⭐⭐⭐⭐ – The Hook. The shock of the low price and the introduction of the bleak "Observer" system.

Ch. 5–10 (The Reality Check): ⭐⭐⭐⭐ – The Slog. Kusunoki tries to reconcile with his past (Himeno) and realizes he can't fix what is already broken.

Ch. 11–13 (The Intimacy): ⭐⭐⭐⭐⭐ – The Shift. The focus moves from "regret" to "Miyagi." The two outcasts find a rhythm in their shared invisibility.

Ch. 14–16 (The Three Days): ⭐⭐⭐⭐⭐+ – The Climax. The ultimate sacrifice and the realization that three days of true happiness outweigh thirty years of breathing.

WebNovelDB Review

10 /10
Widely regarded as one of the best short stories in the "Light Novel" medium. It is essential reading for anyone who has ever felt "behind" in life.

Emotional Impact: 10/10. It doesn't just make you sad; it makes you re-evaluate your own life and how you spend your time.

Character Growth: 9/10. Kusunoki’s transformation from a bitter loner to someone who finds genuine joy is masterfully handled in a short page count.

Writing Quality: 8/10. Sugaru Miaki has a distinct, melancholic prose style. While originating on 2ch, the polished novel version is evocative and sharp.

Pacing: 10/10. At only 16 chapters, there is zero filler. Every scene contributes to the final, heart-wrenching climax.

The Good: A perfect ending that feels earned rather than forced. The relationship between Kusunoki and Miyagi is one of the most selfless romances in fiction.

The Bad: Extremely depressing for those already struggling with loneliness or feelings of failure.

The Archetype: The "Fallen Genius." A character who realizes that being "special" doesn't matter as much as being "happy."

The Final Verdict: A masterpiece of "dull misery" that somehow leaves you feeling more human. It is a "good cup of bitter coffee" that lingers long after the last drop.

Mental Health Note: This novel deals with themes of suicide, worthlessness, and the feeling of being a 'failure.' If you are in a vulnerable mental state, proceed with caution or have support nearby.
WebNovelDB Team

Key Information

Main Characters: Kusunoki (MC), Miyagi (The Observer), Himeno (The childhood "dream" that failed).
Power System: Economic Nihilism. Your life is a commodity, and the market doesn't care about your feelings—only your utility.
Themes: The Capitalization of Life, The Subjectivity of Happiness, Reminiscing vs. Living, Self-Sacrifice.

Reading Progress

Not Started Chapters: 0 Rating: -

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Niige
Niige
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1 month ago

How tf do i READ

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