Happiness Vol. 9

Name: Happiness Vol. 9
Price: 5.99 USD
Availability: InStock
Rating: 4.7 (356 reviews)
Author: Shuzo Oshimi

by Shuzo Oshimi

Manga Horror

4.7 (356)

4.7 stars from 356 reviews

$5.99Deal45% off peak

Last checked: Jul 9, 2026

Price history: $5.99 – $10.99

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Price range: $5.99 – $10.99

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Perfect for you if...

You've been following this series and need to know what happens when Sakurane's grip on reality finally shatters completely.
You appreciate horror manga that treats psychological breakdown with brutal, unblinking detail.
You're invested in Okazaki's arc and want to see him return to a world that's descended into nightmare.

Maybe not for you if...

You're looking for levity or relief—this volume is relentless in its darkness.
You prefer manga that pulls punches or leaves violence to implication rather than illustration.
You're new to the series and expect this to be accessible without volumes 1-8.

About this book

Sakurane's mental state deteriorates to a critical point, triggering a violent outbreak that devastates the cult and kills their deity. With no one able to restrain him, Sakurane turns his attention to Gosho to perform his ascension ritual. As Gosho endures severe trauma, her desperate internal cries rouse Okazaki from a ten-year dormancy, prompting his escape.

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Price History

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

$5.99 – $10.99

Currently on sale at $5.99 — 45% off peak. Price has dropped 5 times over the last 5 years. Goes on sale roughly every 431 days. Typically stays discounted for 997 days.

Sales Rank

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

Currently around #570K in the Kindle store — a niche title. Sales have softened 37% recently.

Rating & Reviews

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

Currently 4.7★ from 356 reviews

Gaining approximately 3 new reviews per month. Rating has remained stable at 4.7 over the tracking period.

Sale Prediction

Actual Predicted

This book is currently discounted at $5.99. It typically returns to around $10.99.

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.