Completed

The Strongest Dull Prince’s Secret Battle for the Throne

Saikyou Degarashi Ouji no An’yaku Teii Arasoi Munou wo Enjiru SS Rank Ouji wa Koui Keishou-sen wo Kage kara Shihai Suru, SPT, The Insipid Prince's Furtive Grab for The Throne [Official], The Strongest Dried Prince’s Secret Battle for the Throne: I’m not interested in the throne, but I don’t want to die, so I’m considering making my brother the emperor, 最強出涸らし皇子の暗躍帝位争い～帝位に興味ないですが、死ぬのは嫌なので弟を皇帝にしようと思います～

Native Language Japanese

Released 2019

AuthorTamba, タンバ

ArtistYuunagi, 夕薙

TypeWeb Novel (JP)

Original Ch.: 767

Translated Ch.: 767

Rank: #273

Last Update: May 14, 2026

Original Pub.: Syosetu

English Pub.: Kadokawa digi-pub

View:

? Views

7.6

The Strongest Dull Prince’s Secret Battle for the Throne is a popular novel that blends Action, Adventure, Drama and more. Written by the author Tamba. A total of 767 chapters have been translated and the novel is complete.

Synopsis

The Adrasia empire on the Vogel continent. There is a battle over the throne of such an empire that possesses powerful military and vast territory.

With the successor undecided, the children of the emperor are vying to expand their power. However, there was one prince that everyone says will definitely not become the emperor.

The seventh prince, Arnold Lakes Adler. The young man who was inferior to his younger twin brother in every way, the dull prince.

Incompetent and lethargic, Arnold wastes everyday just playing around. However, behind the scenes, he is one of the only five SS-Class adventurers called ‘Silver’.

Seeing the intensifying battle for the throne he decided “I don’t want to die so let’s have my little brother become the emperor…”

This is the tale of absurd secret manoeuvres of the prince who is uninterested in the title of the emperor.

Action Adventure Drama Fantasy Harem Seinen

Bookmark

Facebook Twitter WhatsApp Pinterest Telegram

Editor's Note

⚠️ The Mask of Incompetence. This novel leans heavily into the "secretly OP" trope. Arnold plays the role of the lethargic, "dull" seventh prince to perfection, which is great for world-building but can be genuinely grating for readers who prefer proactive protagonists. You have to be okay with an MC who intentionally lets people look down on him.

The Twin Dynamic. The strongest hook here isn't the magic—it's the relationship between Arnold and his younger twin, Leo. Arnold’s motivation is surprisingly simple: "I want a lazy life, and I don't want to die, so I’ll force my hardworking brother onto the throne." Watching him manipulate the empire from the shadows to make his brother look like a saint is the series' biggest strength.

A World of Scale. While some early arcs feel like "monster-of-the-week" filler, the scale eventually expands. As an SS-Class adventurer (Silver), Arnold has the power of a nuclear deterrent, but he’s playing a game where he can't actually use that power without destroying his brother’s political legitimacy. It’s a delicate balancing act.

The "Logic" Gap. As noted by several readers, the early chapters have some "first-novel" jitters. Some character reactions (like guards ignoring an SS-rank ID) feel forced to create drama. If you can get past the first 20 chapters, the internal logic stabilizes significantly.

A series that rewards the patient. It’s a "shadow master" story where the goal isn't personal glory, but building a legend for someone else.

Experience Curve

Ch. 1–50 (The Hidden Hand): ⭐⭐⭐ – The Foundation. Sets up the double life. It’s heavy on tropes—the "useless" prince and the "cool" butler—but effectively establishes the stakes of the succession war.

Ch. 51–200 (Expanding the Faction): ⭐⭐⭐⭐ – The Rise. This is where the "Dull Prince" actually starts his "Secret Battle." The recruitment of key allies and the shadow-play to boost Leo’s reputation are where the story finds its groove.

Ch. 201–500 (Empire at War): ⭐⭐⭐⭐ – The Peak. The political maneuvering becomes more complex, and the threats shift from simple monsters to rival siblings who are actually competent. Arnold’s "Silver" persona is used more strategically here.

Ch. 501–End (The Final Throne): ⭐⭐⭐ – The Conclusion. A long journey (760+ chapters) that stays consistent to its premise. It avoids the "power creep" trap better than most, focusing on the final resolution of the imperial line.

WebNovelDB Review

7 /10

A solid, long-form binge for fans of secret identities and kingdom-building, though it suffers from some early-game cliches.

Political Maneuvering: 7/10. While some calls it "surface level," the way Arnold uses his "Silver" identity to resolve problems that the "Dull Prince" can't touch is clever. It’s less about deep philosophy and more about practical shadow-ops.

Character Chemistry: 8/10. The interactions between Arnold, his twin Leo, and their sister Christa are the heart of the novel. They feel like a real (albeit dysfunctional) family rather than just cardboard cutouts.

Action & Power: 7/10. Arnold is undeniably OP, but because he is constantly trying to hide his strength, the fights are more about "how do I win without being caught?" than "how do I hit harder?"

Pacing: 6/10. With over 700 chapters, there is inevitable filler. Some arcs drag, especially when the author spends too much time on Arnold's internal monologues about being "lazy."

The Good: The "Silver" identity is genuinely cool, and the concept of a twin brother acting as the "public face" while the other is the "shadow" creates a unique dynamic you don't see in every isekai/fantasy.

The Bad: The "beta" or "non-confrontational" personality of the MC can be a dealbreaker for some. If you want a protagonist who demands respect immediately, this will frustrate you.

The Archetype: The "Kingmaker." He has the power to take the crown but chooses to be the architect of someone else’s reign.

The Final Verdict: If you enjoyed The Genius Prince's Guide to Raising a Nation Out of Debt or Sevens, you will likely find this a satisfying read. It’s the ultimate "guilty pleasure" for anyone who loves the idea of the most underestimated person in the room secretly being the most dangerous.

WebNovelDB Team

Key Information

Main Characters: Arnold (The "Dull" 7th Prince), Leo (The "Heroic" Twin Brother), Sebastian (The OP Butler), Finne (The Beautiful Ally).

Power System: Ancient Magic and Mana. Arnold possesses immense mana and mastery of lost "Ancient Magic" spells, allowing him to operate as an SS-Class adventurer while pretending to have zero aptitude for standard imperial magic.

Themes: The Kingmaker's Burden, Secret Identities, Political Sabotage, Merit vs. Bloodline, Strategic Laziness.

Similar To: Genius Prince’s National Revitalization from State Deficit ~ Right, Let Us Sell the Country, Sevens, The Novel’s Extra, My Death Flags Show No Sign of Ending, The World of Otome Games is Tough For Mobs

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?