Manga Jonna and the Unpossible Monsters (2021-)

Rainbow has been searching for her sister, Jonna, for a year. The last time she saw Jonna was also the first time she saw one of the monsters that now roam the planet. They're big, ugly, and dangerous creatures, driving humanity to the brink of extinction. Though there isn't much hope for survival out in the wild, Rainbow knows that her sister is out there somewhere—and she'll do anything to find her.