by PhoenixStarr
Volumes 1-3 completed and volume 4 out now! Kaito is the only known human left in a universe where humanity is said to be extinct. Almost everyone wants him dead. But someone… or something needs him alive. He’s hunted by intergalactic governments and haunted by the mysterious power growing inside him. With the help of the S-ranked elven Star Traveler captain Elara and her crew, the Starlight, Kaito journeys across countless worlds, clashing with empires, cosmic well guardians, and the demons of his, humanity's, and the universe’s past—all in search of one thing… The Cosmic Heart. Heart of the Cosmos is a sci-fi, shonen-meets-seinen space opera with martial arts, interstellar warfare, cosmic powers, and emotional moments.*For fans of Naruto/Boruto, One Piece, Dragon Ball, Fate, Bleach, and JJK. Releases one chapter per week (Sunday)
No streak history
One state-enhanced oracle order, filtered by each list. Observed Royal Road ranks remain separate ground truth.
Rank updated 2 Oct 2026, 02:49 UTC
Entry forecast updated 2 Oct 2026, 02:49 UTC
Ranking model: rs-public-oracle-state-v1
Forecast model: rs-model-entry-v1
Chart history contains only this ranking model's runs; legacy points are not spliced in.
Coupled 14-day outlook
rs-joint-entry-copula-v1
Any eligible RS entry
4%
Two or more lists
0%
Likely threshold order: Sci-fi → Adventure → Action → Main → Fantasy.
Leading bundle: Sci-fi (4%).
Estimated from one fitted shared story path; category probabilities are not multiplied as if lists were independent.
Separate entry forecast; this probability does not enter the ranking score.
Overall Rising Stars Shadow RS rank
#10805 of 12,412 · 10755 below RS #50
By genre
beats 78% of similar stories
beats 58% of similar stories
beats 30% of similar stories
Hidden gem — exposure is the bottleneck
Readers who find this story follow it at a high rate; there just aren't enough of them. In our cohort data, near-daily posting lifted the odds of reaching 25 followers from ~0% to 17% — more chapters, shoutout swaps and ads buy the eyeballs this conversion deserves.
Benchmarks: 8,060 active Royal Road stories, percentiles within the 50–149 chapters band, cohort of 2026-07-02. Conversion is measured as followers gained per 1,000 views over the recent window.
