Happiness Vol. 2

Name: Happiness Vol. 2
Price: 5.99 USD
Availability: InStock
Rating: 4.5 (1380 reviews)
Author: Shuzo Oshimi

by Shuzo Oshimi

Manga Horror

4.5 (1,380)

4.5 stars from 1,380 reviews. Top 86% of Manga books we track.

$5.99KU40% off peak

Last checked: Jul 11, 2026

Read free with Kindle Unlimited

Price history: $1.99 – $9.99

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Price range: $1.99 – $9.99

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Perfect for you if...

You love psychological horror that blurs the line between body horror and emotional trauma, where the real terror is what's happening inside the protagonist's mind.
You're drawn to manga that treats dark subject matter with seriousness and refuses easy answers about friendship, guilt, or redemption.
You want a story where every answer raises three new questions, and you're willing to sit with genuine unease to find out what happens next.

Maybe not for you if...

You prefer clear resolutions and straightforward character arcs; this series thrives on ambiguity and escalating dread.
You're looking for traditional shounen action or feel-good narratives; this is visceral, unsettling, and often stomach-turning.
You need likeable protagonists with heroic motivations; Makoto's desperation and the morally murky dynamics here will frustrate rather than engage you.

About this book

Makoto Okazaki is undergoing changes. After transforming his former bully Yuuki into an unusual kind of friend, he becomes involved in confronting Yuuki's own tormentors. However, Makoto's strange new physiology, while potentially addressing one problem, creates additional complications. Meanwhile, disturbing questions persist about Makoto's situation: the identity of the girl who attacked him, what is happening to his body, and why he remains constantly thirsty.

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We track price drops, sale patterns, and predict when this book will go on offer next.

Price History

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

$1.99 – $9.99

Currently on sale at $5.99 — 40% off peak. Price has dropped 6 times over the last 5 years. Goes on sale roughly every 323 days.

Sales Rank

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

Currently around #82K in the Kindle store — a steady mid-list seller. Climbing the charts — 20% improvement recently.

Rating & Reviews

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

Currently 4.5★ from 1,380 reviews

Gaining approximately 12 new reviews per month. Rating has remained stable at 4.6 over the tracking period.

Sale Prediction

Actual Predicted

This book is currently discounted at $5.99. It typically returns to around $9.99.

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.