Status: Hiatus
Currently this series stopped at chapters 37 for years. The author work on her other work 'The Centaur/Lost Gate' for quite awhile now. Presumably, it will stay hiatus for awhile. But there's a probability of it coming back.
Source: author weibo
Status: Discontinued
Status: Discontinued
Status: Discontinued
Source: cmoa has given a notice of this work will no longer be purchase-able on March 31, 2020.
Status: Extended Hiatus
This series will be on extended hiatus due to controversy that involve internationally. You can read more about it online by just typing in this manhwa name.
Status: Discontinued
Status: Discontinued
Status: Extended Hiatus
There is no mention of this on hiatus or anything about the author, but this has been on hiatus close to 5 years now.
Status: Indefinitely Hiatus
The author, Takehiko Inoue has mention it will be on hiatus due to his health. But also mention that he will be back on it anytime soon. So this will be marked as indefinitely hiatus rather than discontinued.
Fatal Code (Heibai Overtone)