The idea is so off the walls I couldn't help but want to check this out and I'm glad I did. Though it's a lot bleaker than I expected but I appreciate that. Basically our main character, Kamiya who's broke as fuck, working to basically not make enough money, and a mother who is mentally ill.

In this world the sky is pitch black, no sun. And the planets are dead. Meaning no oxygen. Except humanity has created plants but they must of grow within humans till it makes the human completely into plants and they can't even talk (normally) anymore. They usually give this to people dying as a way to give back to humanity. So our lead decides to fake dying, and now is slowly becoming a plant.

But he can talk to the other plants who are fully transformed which no other person could do before.

This tackles broken healthcare systems, government control, poverty, mental health, abusive parents and so on. Heavy topics but I was intrigued the whole time. Will pick up volume 2