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Happy Hypoxia: Haiiro no Ko
ハッピーハイポキシア-灰色の子- · はっぴー はいぽきしあ はいいろ の こ
est. Rough estimate based on volume count, reprints and magazine — not an official figure
Overview
After eight years of infertility treatment, Miyuki gives birth to a long-awaited baby boy. But then the hospital suddenly catches fire, forcing Miyuki to make a big decision... A heart-warming human drama about two women and a child. (Source: Futabasha, translated)
Source: AniList
External databases: AniList
How to compare editions, collected volumes and ISBNs / Sources, updates and corrections
Volumes
ACTION COMICS First edition
1vols · 2026-05
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