Happiness Vol. 4

Name: Happiness Vol. 4
Price: 5.99 USD
Availability: InStock
Rating: 4.6 (914 reviews)
Author: Shuzo Oshimi

by Shuzo Oshimi

Manga Horror

4.6 (914)

4.6 stars from 914 reviews. Top 91% of Manga books we track.

$5.99KU48% off peak

Last checked: Jul 9, 2026

Read free with Kindle Unlimited

Price history: $5.99 – $11.48

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Price range: $5.99 – $11.48

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Perfect for you if...

You enjoy horror manga that treats dark subject matter with genuine psychological depth rather than cheap shock value.
You're gripped by stories where characters become monsters and have to grapple with what they've become, not just what they've done.
You want manga that builds dread slowly through character study and twisted relationships rather than gore alone.

Maybe not for you if...

You're looking for a light read or anything uplifting. This series is bleak and stays that way.
You prefer horror that relies on jump scares or external threats rather than the horror of human nature and desire.
You need clear resolutions or moral clarity. The story embraces ambiguity and doesn't offer easy answers about whether anyone can be saved.

About this book

Makoto pleads with Nora to reverse the disturbing physical transformation she has inflicted on him. Meanwhile, Yuuki grows increasingly driven by his own violent urges. His girlfriend Nao remains unaware of Yuuki's escalating appetite for violence and believes her love can control the creature he is becoming. Even if her affection proves sufficient to prevent further deaths, Makoto discovers he is simply the latest participant in a conflict that has existed for a long time.

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Price History

Kindle price over time. Green zones = periods when the book was free.

$5.99 – $11.48

Currently on sale at $5.99 — 48% off peak. Price has dropped 8 times over the last 5 years. Goes on sale roughly every 228 days.

Sales Rank

Amazon sales rank: lower number = better selling book. #1 is the bestseller.

Currently around #69K in the Kindle store — a steady mid-list seller.

Rating & Reviews

Purple line = star rating over time. Blue area = total review count growth.

Currently 4.6★ from 914 reviews

Gaining approximately 10 new reviews per month. Rating has dipped slightly from 4.7 to 4.6.

Sale Prediction

Actual Predicted

This book is currently discounted at $5.99. It typically returns to around $11.48.

Prices shown in USD from Amazon US. We continuously pull new data to improve tracking. If dates look old, it usually means there has been no significant change since the last data point.

Curious how prices and deals move across the whole Kindle store? See the latest findings in The Kindle Report