Is 'Assassination Days' Part Of A Series?

As someone who's analyzed 'Assassination Days' frame by frame, I can confirm it wasn't originally planned as part of a series. The light novel version ends with definitive closure, and the manga adaptation didn't add any sequel hooks. What makes it interesting is how the author structured the lore. There are subtle references to historical events in their other works like 'Shadow Regicide', creating a shared universe without direct continuity. The protagonist's unique fighting style—using piano wires as weapons—is never replicated in other stories, further cementing its standalone status.

That said, the fandom has created extensive headcanons about potential connections. Some theorists argue the mysterious arms dealer in Chapter 12 might be a younger version of a character from 'Bullet Ballet', but the author hasn't confirmed this. The appeal lies in its completeness; every detail from the protagonist's backstory to the final confrontation feels meticulously planned as a single narrative. If you want more assassination-themed series with deeper connectivity, 'The Phantom Contract' trilogy explores similar themes across multiple interlocking stories.

I've been following 'Assassination Days' since it first dropped, and it's definitely a standalone gem. The story wraps up neatly without any cliffhangers or loose ends that would suggest a sequel. The protagonist's arc completes in a satisfying way, with all major conflicts resolved by the final chapter. That said, the world-building is rich enough that the author could easily spin off into prequels or side stories if they wanted to. The combat system and political intrigue are so well-developed that fans keep begging for more content in the same universe. For now though, it remains a self-contained masterpiece with no official sequels announced. If you enjoy this style, check out 'The Killer's Diary'—another great standalone in the assassin genre.

From a narrative perspective, 'assassination days' works perfectly as a one-shot story. The way it explores the psychological toll of contract killing through the protagonist's eyes doesn't leave room for continuation—his personal journey reaches its natural endpoint. Unlike series where power scaling becomes an issue, this story's strength comes from its tight focus and limited timeframe (it covers exactly 47 days, hence the title).

The author's afterword specifically mentions designing it as a standalone to avoid the common pitfall of dragging out stories unnecessarily. What makes it special is how every side character gets proper closure too, from the informant who retires to the rival assassin who finds redemption. The weapons catalog featured throughout (like the poison-laced cufflinks) are unique to this story and don't appear in the author's other works. If you liked the vibe, 'Silent Bullet' offers a similarly concise take on sniper-based assassinations with even more technical detail.