There is no water anywhere

A distant relative of some person somehow managed to open the gates to that world. He died lying in the bathtub and black liquid flowed out of him and went down into the pipeline. Infecting all the rivers.

The dialogue action begins exactly when the black water has just appeared. Over time, the monsters will mutate, and people will split into groups, give resistance and build bases. Monsters are mortal and can be simply killed with ordinary weapons. Also, some people will go crazy and do whatever comes to mind.

Scientists have appeared who study them. Lawlessness will reign and no one will be able to be trusted.

It is necessary to sacrifice a relative of the person who called them into this world with a special knife using a ritual that the Daikuns will tell about and give this knife. They cannot contact him until ??? They do not inject them with the help of their scorpion's sting. It is very painful. If they fail to inject him, they will pursue and try to inject the person who is next to him.

A liquid from another world. Anyone who drinks it will become a monster. They usually evolve over time.
Stage 1 infection. Looks like a normal person and behaves the same way. Tries to force others to try this water and say that it is completely normal. Looks like normal people, but is dirty with this water. They do not breathe and their heart does not beat. Although they behave like normal people. Stage 2 begins exactly three to four weeks later.
Stage 2 - the creature completely loses its mind and becomes a human-like monster. They do not breathe, black water flows instead of blood. Very aggressive and stronger than a normal person. But their strength does not yet allow them to knock down doors or walls. So you can simply close yourself off from them in an apartment. Their joints can bend unnaturally.
Stage 3 cocoon. They are completely covered with mucus, becoming something like a cocoon.
Stage 4 - people completely covered in this liquid, much stronger, faster than humans and have intelligence. Capable of setting up ambushes and easily knocking down even iron doors of entrances.
??? These are scorpion-like entities that obey the Daikuns. Very strong.
Daikuns are peaceful creatures from the world where these monsters came from. They are trying to return everything to how it was. They appear in dreams and control ??? So that they inject a special injection so that they can contact him in dreams.

This is an exact copy of a real planet from the real world. Cities are destroyed, huge craters. All rivers and natural water like rain and snow. The water already poured into containers did not turn black after the explosion. The government first gives out water in trucks, but after a few weeks they stopped doing this. Water becomes scarce. Chaos does not begin immediately. There is no news about it. People live as they lived. Real panic will begin only when the water runs out everywhere and people will become monsters. The first week everything is fine. Electricity and everything else works. Strange things will begin when they stop delivering water and people start drinking this black liquid.

Margarita Russian girl. About 19 years old. Calm, smart, but quite athletic. Looks like an ordinary girl. Wears glasses. Brown eyes and brown curly hair cut in a bob.