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The Reborn Young Lord is an Assassin

The Reborn Young Lord is an Assassin, The Regressed Son of a Duke is an Assassin, 회귀한 공작가의 막내도련님은 암살자

Native Language Korean

Released 2023

Author커피라임

TypeWeb Novel (KR)

Original Ch.: 502

Rank: #263

Last Update: April 6, 2026

Original Pub.: Breathe, Naver Series, New Episode

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6.4

The Reborn Young Lord is an Assassin is a popular novel that blends Action, Adventure, Fantasy and more. Written by the author 커피라임. The number of translated chapters is being updated. Translation of other chapters is complete.

Synopsis

Cyan Vert, the best assassin of the continent, meets a pitiful death after having been betrayed by his own brother, whom he had trusted all his life.
If I were given another chance at life, I would live it differently. I would only trust myself, and achieve all the things I want on my own without serving anyone else but myself.
That is how I was given a second chance at life.
The Cyan Vert, a shadow who lived for others, is no more. I will now pave a path on my own, for myself!

🎭 System Interface: The “Indifferent Regressor” Protocol

Rather than following a standard “hero’s journey,” this story operates on a power-fantasy engine that shapes every major decision and conflict.

Component	Classification	Tactical Implication
Narrative Engine	Face-Slapping Underdog	Drives the story toward satisfying but predictable moments of social and combat dominance.
Primary Genre	Action / Fantasy / Revenge	Sets expectations for a cold MC, but often dips into slice-of-life academy moments.
Atmosphere	Dark & Gritty (Early)	Creates a constant feeling of tension that often deflates because the MC is too OP.
The “X” Factor	Delayed Retribution	Forces the story to evolve by having the MC spare villains so they can “grow” before he kills them.

📂 System Interface: The Status Window (Cyan & The Cast)

Instead of simple character roles, the story builds a contrast between Cyan’s past-life peak and his present-life peers:

Attribute	Cyan Vert	Supporting Cast (Arin/Luna)
Classification	The Overqualified Regressor	The Developing Allies
Mental Archetype	Represents Cynical Self-Reliance	Represent Hope & Growth
Personality	Arrogant, tsundere, and lethal	Naive, smart, and often “useless” in combat
Dynamic	Their relationship evolves through Cyan “accidentally” caring while claiming he’s just using them for future benefits.

Action Adventure Fantasy Harem

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Editor's Note

💡 The "Lethal Arrogance" Insight

[The Efficiency Paradox]: Honestly, the most frustrating part isn't that he's a plagiarist of his own past life, it's that he's too efficient until he isn't. At first, I thought he'd be a cold-blooded killer, but he has this weird habit of letting big villains escape just to make the eventual revenge "sweeter." Not gonna lie, watching him release a criminal only for that criminal to come back and hurt his friends makes you want to reach into the book and shake him.

[The OP Ceiling]: What makes this aspect interesting is the 9-star magic limit. Since he's a kid with the soul of a god-tier assassin, the "fights" aren't really fights—they're executions. While some readers love the face-slapping, others find it boring because there’s zero tension when Cyan can just pummel everyone in one strike.

[The Revision Rabbit Hole]: Personally, this is where the novel gets confusing. There are two versions: the original (325 chapters) and a revised version. Depending on which translation you're reading, the plot might feel slightly different or more polished. If the logic feels "brain-dead" in the middle, you might be reading the unedited original run.

Experience Curve

The Regression Log

Ch. 1–50 (The Underdog Phase): ⭐⭐⭐⭐
A strong opening that immediately establishes the revenge hook, making it easy to get invested in Cyan's fast rise to power.

Ch. 51–150 (The Hiding Phase): ⭐⭐
The story slows down as Cyan hides his power in the academy, which can feel either immersive or frustratingly contrived given how strong he actually is.

Ch. 151–Complete (The Karma Phase): ⭐⭐⭐
A more complex phase where past mistakes come back to haunt him, leading to battles that finally have some actual stakes.

WebNovelDB Review

6 /10

A standard power-trip regression, especially for readers who enjoy read The Reborn Young Lord is an Assassin for the immediate gratification of an underdog becoming a genius overnight.

Polish: 5/10. The writing feels standard and repetitive, with some machine-translation inconsistencies in certain arcs.

Pacing: 6/10. The story starts fast with the training arc, but hits a massive 7-year time skip that leaves the plot feeling a bit disconnected.

Character Depth: 4/10. Rather than focusing on transformation, most characters are defined by their reaction to how cool the MC is.

Originality: 3/10. While it’s a solid execution of the genre, it follows the "Swordmaster's Youngest Son" template almost beat-for-beat.

The Good:
One of the strongest aspects is the one-liners and "cool" moments, especially in how Cyan shuts down arrogant nobles who think he’s still a "bastard child."

The Bad:
However, it struggles with MC hubris, which can make certain parts feel like the plot only moves forward because the MC made a "stupid" choice to keep a villain alive.

The Archetype:
The Edgy Tsundere — a protagonist who doesn’t follow the usual heroic path, but instead operates as a cold killer who "accidentally" starts an orphanage and saves the kingdom.

Verdict:
The Reborn Young Lord is an Assassin is ultimately a "popcorn read" experience. It’s less about deep philosophy and more about watching a guy who is too strong for his own good. If you’re looking for quick revenge and an OP MC, this is worth trying.

WebNovelDB Team

Key Information

Main Characters: Cyan Vert (The "Shadow" Assassin) — rather than a typical protagonist seeking redemption through kindness, he is an edgy, indifferent regressor who claims to only trust himself while deep down playing the "tsundere" protector. Alongside Aschel Vert (The Mortal Enemy/Brother), and Princess Arin (The Childhood Friend), who often acts as the emotional anchor for a guy who pretends he doesn't have a heart.

Power System: Mana & Assassination Arts. Instead of a generic leveling system, this mechanic revolves around regression-based mastery, where Cyan retains 9-star magic capabilities and elite sword skills from his past life, though he's physically limited by his younger, 12-year-old body.

Themes: Beyond Revenge and Regression, the story heavily explores the weight of arrogance — especially through how the protagonist’s overconfidence and refusal to "nip threats in the bud" leads to avoidable collateral damage.

Similar To: I Became the Youngest Prince in the Novel, The Reincarnated Assassin is a Genius Swordsman

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