Is Kindan Shitei de Breakthrough Worth Reading?
Quick Answer
Yes, if you want a classic harem-adventure shounen built around a fun, durable hook: the hero's son secretly trained by the very Demon King his father defeated.
Quick Verdict
“This is a solidly entertaining shounen harem-adventure that uses its forbidden-training premise to give a legacy-pressure story some real comedic and dramatic range.”
Best for: readers who want a classic harem-adventure shounen with a strong central gimmick and a complete, finished run.
Not for: readers looking for a slow-burn single-pairing romance -- this is a harem structure with multiple love interests.
- Type
- Manga
- Genres
- Fantasy, Action
- Status
- Completed
- Author
- Anikkii Burazzaa (story), Etou Yona (art)
| Quick facts | |
|---|---|
| Format | Manga (shounen), 20 chapters, 4 volumes |
| Run | 2020–2021 · completed |
| Community score | AniList 7.4 |
| Content | Fantasy action and harem-genre content consistent with the genre; no sexual content. |
What It's About
Eirth is the son of the hero who defeated the Demon King, and the weight of that legacy is crushing him -- every comparison, every expectation, every assumption that he should simply inherit his father's strength. Alone in the room holding his father's sword, he encounters something nobody expects: the ghost of the very Demon King his father struck down. Instead of enmity, the ghost offers him secret training, and Eirth accepts -- determined to prove himself not as his father's shadow, but as someone who earned his own strength, to his parents, his elders, his childhood-friend princess, and the new generation of geniuses rising around him.
Why It Works
The 'secretly trained by the villain' hook gives the story an easy, durable source of tension and humor -- Eirth's forbidden master-and-disciple bond with a dead Demon King is the kind of premise that keeps generating both comedic and dramatic beats as it goes. The story leans into classic shounen-harem structure, with Eirth's growing strength and his relationships with the women around him developing side by side, but it doesn't lose sight of the central father's-legacy conflict that gives Eirth's arc its actual stakes.
Who Should Read This
This is a solid pick for readers who want a classic harem-adventure shounen with a fun central gimmick (hero's son secretly trained by the Demon King) and a complete, wrapped-up run rather than an open-ended ongoing series.
Where to Read It
No official English release currently exists for this series, which completed its run at 18 chapters.
Strengths & Weaknesses
Strengths
- A fun, distinctive central hook that sets it apart from typical legacy-pressure shounen stories
- A complete, wrapped-up run with a real ending
- Solid action and harem-adventure pacing throughout
Weaknesses
- The harem structure may not appeal to readers wanting a focused single romance
- No official English release currently exists
Frequently Asked Questions
Is Kindan Shitei de Breakthrough finished, and is the ending good?
Yes, it's complete at 18 chapters with a full conclusion.
How long is Kindan Shitei de Breakthrough?
It's a fairly short, complete series at 18 chapters across 4 volumes.
How dark or mature is Kindan Shitei de Breakthrough?
It's a fairly light shounen harem-adventure with fantasy action, no sexual content, and nothing especially dark.
What's the premise of Kindan Shitei de Breakthrough?
The son of the hero who defeated the Demon King is secretly trained by that same Demon King's ghost, determined to earn his own strength instead of just inheriting his father's legacy.