Completed

This Marriage Will Surely Succeed

This Marriage Will Definitely Succeed, 이 결혼은 반드시 성공합니다

Native Language Korean

Released 2023

Author마지노�

TypeWeb Novel (KR)

Original Ch.: 326

Translated Ch.: 278

Rank: #786

Last Update: March 29, 2026

Original Pub.: Kakaopage, Peridot

View:

? Views

8.6

This Marriage Will Surely Succeed is a popular novel that blends Action, Adventure, Comedy and more. Written by the author 마지노�. A total of 278 chapters have been translated and the novel is complete.

Synopsis

Iona, the knight who was the loyal dog of the tyrant Emperor, gave her life for him. But her lord, whom she trusted, abandoned her in the end, and the person who stood by her side in her death was no other than her husband.
“I want to kiss you one last time.” Iona demanded on the verge of death.
“I’m telling you in advance… Just in case… You won’t die and this won’t be our last kiss.”
Satisfied with her non-lonely death, she closed her eyes.
When Iona woke up again, she realized that she had returned to the past and her husband was again chosen to be her partner.
Though her past wasn’t good, one thing she also didn’t want to change was her husband, the only success in her life. If so, she should at least turn this marriage into a ‘successful marriage’, she decided.
“Lord Leroy, I will formally propose to you; Please marry me. I will definitely make you happy.”
Iona was determined to repay her husband for his generosity. Just the way she wanted.

🎭 System Interface: The “Reciprocity” Protocol

Rather than following a standard “Revenge” formula, this story operates on a Relationship-First Logic that shapes every major decision and conflict, focusing on building a stable future rather than just destroying the past.

Component	Classification	Tactical Implication
Narrative Engine	Slow-Burn Regret / Repayment	Drives the story toward a “Successful Marriage” as the ultimate victory.
Primary Genre	Romance Fantasy / Political Drama	Sets expectations for tactical maneuvering within the court.
Atmosphere	Refreshing & Realistic	Creates a constant feeling of emotional growth and steady partnership.
The “X” Factor	The “Greedy” Final Request	Forces the story to evolve as Iona tries to live up to the “last kiss” she demanded while dying.

📂 System Interface: The Status Window (Iona & Leroy)

Instead of simple character roles, the story builds a contrast between these two figures:

Attribute	Iona	Leroy
Classification	The Reawakened Knight	The Savvy Nobleman
Mental Body	Represents Self-Respect	Represents Unconditional Support
Personality	Capable and direct, yet emotionally naive	Intelligent, gentlemanly, and politically sharp
Dynamic	Their relationship evolves through mutual trust, slowly replacing Iona’s old trauma with a “power couple” synergy.

Action Adventure Comedy Drama Fantasy Romance

Bookmark

Facebook Twitter WhatsApp Pinterest Telegram

Editor's Note

The "Success" Insight

The Realist FL: What makes this aspect interesting is not just Iona's skill, but her emotional journey. She wasn't unaware of the Prince's cruelty in her first life; she was just emotionally dependent on it. Her growth is about breaking that habit.

The "Slow" Burn: While many readers enjoy the depth, others find it frustrating due to pacing issues between chapters 50–90, where the meticulous setup of Iona's "blocks" to leave the palace can feel stagnant.

The No-Cliché Couple: Personally, this is where the novel either becomes addictive or loses its momentum. If you like "misunderstandings for the sake of drama," you won't find them here. The leads actually talk to each other once trust is established.

Experience Curve

The "Repayment" Log

Ch. 1–50 (The Proposal): ⭐⭐⭐⭐⭐
A strong opening that immediately flips the script as Iona takes control of her fate and proposes to Leroy.

Ch. 51–100 (The Political Grind): ⭐⭐⭐
The story slows down significantly to move political pieces. It can feel boring if you are only here for the action.

Ch. 101–End (The Power Couple): ⭐⭐⭐⭐
The momentum returns as the leads fully unite, leading to a satisfying conclusion of the main story and side stories.

WebNovelDB Review

8 /10

A high-quality, mature take on the "Returner" trope, especially for readers who enjoy competent couples who outsmart their enemies together.

Polish: 8.5/10. The writing feels detailed and grounded, particularly in how it portrays the psychological effects of abuse and the slow recovery of self-worth.

Pacing: 6/10. The story starts strong, but hits a significant lull in the middle as the political foundation is laid, which may appeal more to readers who prefer deep setup.

Character Depth: 9/10. Rather than focusing on transformation alone, the characters are defined by their flaws and their ability to learn from past mistakes.

Originality: 7/10. While it uses familiar tropes, it distinguishes itself through its lack of typical romance clichés and a truly gentlemanly ML.

The Good:
One of the strongest aspects is the relationship development, especially in how Leroy remains a distinct, capable individual with his own goals rather than just an accessory to Iona.

The Bad:
However, it struggles with redundant humiliation scenes, such as the repeated focus on Iona's brother, which can feel like it's dragging out the satisfaction for too long.

The Archetype:
The Repentant Shield — a protagonist who doesn’t follow the usual path of total destruction, but instead operates as a protector of the one "success" (her husband) from her previous failure of a life.

Verdict:
This Marriage Will Surely Succeed is ultimately a "Stability" experience. It’s less about flashy magic and more about watching a character navigate a world where the greatest victory is a peaceful, loving home. If you’re looking for a smart, loyal FL and a competent, sassy ML, this is worth trying.

WebNovelDB Team

Key Information

Main Characters: Iona (The Imperial Knight) — rather than a typical protagonist, she is a former "loyal dog" of a tyrant, a woman who once lacked self-preservation and self-worth, now navigating life with a newfound agency born from the realization that she was never truly alone. Alongside Leroy (The Sassy Strategist), whose relationship dynamic is a refreshing partnership of equals—a man who is politically savvy and compassionate rather than a one-dimensional "ice duke"—and The Crown Prince, who acts as the manipulative, controlling shadow Iona must finally outshine.

Power System: The Veteran’s Foresight. Instead of a generic leveling system, this mechanic revolves around Iona’s retained mastery of the sword and her deep, cynical understanding of the Emperor’s psychological triggers, forcing the protagonist to use her "loyalty" as a tactical weapon to dismantle the power structures she once protected.

Themes: Beyond Redemption and Second Chances, the story heavily explores the Transition from Dependency to Autonomy — especially through how the protagonist reacts to her former master’s attempts to reclaim her, choosing instead to find worth in a husband who respects her as a human being.

Similar To: A Transmigrator’s Privilege, I Became the Fiancé of a Dragon in Romance Fantasy

Reading Progress

Not Started Chapters: 0 Rating: -

Where to Read

Community Reviews

Have you read this novel? Share your thoughts with the community!

Consider sharing:
• What moment surprised you the most?
• How would you rate the character development?
• Would you recommend this to other readers?