Devils' Line Vol. 4

Name: Devils' Line Vol. 4
Price: 3.99 USD
Availability: InStock
Rating: 4.7 (929 reviews)
Author: Ryo Hanada

by Ryo Hanada

Dark Romance Manga

4.7 (929)

4.7 stars from 929 reviews. Top 91% of Dark Romance books we track.

$3.99KU50% off peak

Last checked: Jul 11, 2026

Read free with Kindle Unlimited

Price history: $3.99 – $7.99

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Price range: $3.99 – $7.99

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Fans of these authors will like this...

Tsukasa Takayama
Jun Eishima
Kaori Yuki

Fans of these books will like this...

Blood+
Jujutsu Kaisen
The Vampire Knight series

Perfect for you if...

You're invested in slow-burn romance between fundamentally incompatible characters and want to see how they actually build trust.
You enjoy manga that balances intimate character moments with genuine thriller tension and moral grey areas.
You like stories where supernatural beings have complex motivations beyond simple good versus evil.

Maybe not for you if...

You need a complete, self-contained story; this is volume four of an ongoing series and assumes familiarity with earlier plot threads.
You prefer action-driven narratives where plot moves faster than character development and relationship building.
You want clear-cut villains; this manga's willingness to humanise antagonists may feel frustratingly ambiguous.

About this book

Tsukasa insists on taking Oryo to a hospital for care, going against Anzai's preference to keep her hidden at their safe house. Before reaching the hospital, Tsukasa is taken hostage by Zero Seven, who is in a desperate situation. When confronted by her former comrades, Zero Seven makes an unexpectedly compassionate decision. Following these events, Tsukasa and Anzai move forward in their relationship. An old doctor from ONLO arrives in town, and his reasons for being there are revealed.

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Price History

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

$3.99 – $7.99

Currently on sale at $3.99 — 50% off peak. Price has dropped 15 times over the last 5 years. Goes on sale roughly every 124 days.

Sales Rank

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

Currently around #123K in the Kindle store — a niche title.

Rating & Reviews

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

Currently 4.7★ from 929 reviews

Gaining approximately 8 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 $3.99. It typically returns to around $7.99.

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.