10.023 minSeason 1 • Episode 11
LatestSion and Nezumi have overcome many difficulties to reach Safu. However, Safu has now merged with Elyurias. Meanwhile, the people gathered to celebrate the Holy Day have been attacked by a large number of parasite bees. Will No. 6 survive? And what will be the fate of Sion and Nezumi?
In the near future, most of mankind now lives in a handful of city states. There, for the privileged elite, life should be perfect. But for young Sion, life has become a nightmare since letting a strange boy spend the night in his apartment. Banished to the outskirts of the city, Sion now finds himself in worse danger as his inquiry into a new series of mysterious deaths results in his being arrested on suspicion of murder! Now, on the run, the two young men have only one chance at survival.
Writing
Adapts the novel's poetic cruelty with surprising restraint.
Score
SAVIOR OF SONG haunts you for weeks, no therapy available.
Acting
Kaji and Hosoya's vocal chemistry carries the entire emotional load.
Trivia, insights & behind the scenes
No. 6 emerged from Japan's 2010s BL renaissance, when publishers finally let queer stories access mainstream sci-fi budgets instead of trapping them in niche genres.
The anime condenses nine novel volumes into eleven episodes, gutting significant worldbuilding — the light novels explicitly confirm Shion and Nezumi's romantic relationship, which the anime only dances around.
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