Idk why but my follow list doesn't show this webtoon whenever it's updated. I tried to uncheck all my excluded tags even if none matched, re follow this, still nothing.
I JUST REALIZED this was foreshadowed in the anime's ending credits! When the phos' and cinnabar colors blend together!
edit: around the end when their hands formed and tried to reach each other but eventually both get swallowed by the liquid