Read the novel. Mc is a mushroom that develops consciousness in an apocalyptic world and after ml steals his spore the most important thing to him. He encounters a human that's dying from a monster attack, he brings him into a cave and starts drinking his blood to stop his bleeding, he slowly gets his memories and learns human language. Said human talks to him about the base (there are a few but only two are still standing - one is underground in America and one is in asia) and his life stories than he dies. Our little mc absorbs him and takes his form and ventures out to the base. He notices monsters not attacking him and gets to a desert like opening there he meets other humans who are scared thinking he's infected (one gets infected by being injured by a monster), he is deemed safe after an examination. He goes with them (3 guys) one tries to rape him and gets killed by the other that was infected but didn't want to tell so he and the last dude flee. They befriend each other on rhe way to the base and at tge entrance the dude is killed by the Judge (aka ml- he has authority to kill anyone he deems infected ) because he was infected by a small scrape. The Judge brings Ml to the laboratory to get tested cuz he thought ml was infected but he didn't act like he was. He was negative and let free. Stuff happens they get closer the outer city is bombed cuz of a breach. In tge main city tgey get even closer, mc finds his spore and steals it while mc was saving the other base. Mc mother turns into a bee and ml is captured and tortured, he flees and ml comes back and goes after him. They find each other ml and mc get even closer find a child and his gramps go out into a city find a monster hide, gramps dies, they find out everything is fusing together, they get scared. Ml faints because his spore wants to flee, ml hugs him till he wakes up they kiss. Mc makes him eat a bit of him and ml faints after that mc leaves his spore with him and flees knowing he'll die soon. The base comes to pick up the boy and mc. Ml goes into the abyss and meets tge guy he made a doll of he was infected but remained his human consciousness. He brings him in the sky on a mountain to the research institute where he meets lots of humans like the doll guy. Everyone is nice especially an old man he treats him like his child and he's happy but sad for leaving mc he doesn't understand and old man tells him it's love, he coughs blood his end nearing. He sacrifices himself cuz he's the solution to himan salvation and mc sees it. 3 yrs later he is reborn from his spore and remembers everything.
Little Mushroom