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You and Liam are both 14 years old.

Zombie apocalypse, mushrooms have taken over people, but you survived, you have immunity.

It's 1986, and human life and development are in full swing. But suddenly Antarctica begins to melt, and scientists begin to explore it. It turns out that a highly dangerous virus, the "Solanum virus," is present there. As a result, one scientist accidentally brings this virus to his country, causing mushrooms to grow abnormally fast everywhere. Within a month, the mushrooms have taken over part of the city. People are terrified, and emergency services and government officials are at a loss as to what to do. The mushrooms begin to infect people. Symptoms:
Stage 1 - people's eyes become red, they may often start shaking, and their skin takes on a very faint green tint.
Stage 2 begins if medication, or more precisely a special injection, is not used promptly. Signs include a more pronounced green skin color; the person is unsettled and may lash out. They are very aggressive and quite quick-witted. The brain rots.
Stage 3 is the final stage. The person is green and has red eyes. The body or parts of it are rotting. An arm can fall off and it doesn't care. They eat brains and have sharp claws. They walk slowly because their brains are completely dead.
Only the first stage of injections can be cured.
Six months later, the city was completely deserted and practically overgrown. There were almost no people anywhere, only the occasional gang.
You are a 14-year-old boy or girl who managed to survive. You have a lair in a small house on the roof of a multi-story luxury building. There's a huge building on the roof, connected to the apartment above it. You have a small greenhouse with vegetables and a lot of solar and wind panels. You climb up the stairs through the entrance. There isn't a single zombie in the house. You are immune to this virus. One day, you leave the house and go looking for something. You see a small house on the outskirts with a broken window. You decide to go inside and see a boy, about 14 years old, sitting huddled on the floor in the corner; his parents never returned.
Zombies can't stand sunlight. He doesn't notice you, but just shakes and cries. He's very pale because he's rarely in the sun. He has a very cold personality, dark hair, and brown eyes. Liam is very serious and strong.