For the people who have 0 knowledge about the lore of this series
This game is based on arcane, a show that includes various cities/groups fighting against each other, each one having its own goals
In this game there are 3 mafia groups
Lawful evil (red mafia) -> Their leader is ambessa, it’s the one fuji wished to choke him with her thighs, she is a warlord from Noxus (the arcane is a show in which events happen in two cities, piltover and zaun) which means Noxus is an entierly other region, her goal in the show is to possess the hextech crystal powers because her real enemies (the black rose, a secret organization from noxus) tried to obtain them so she is trying to obtain them first (even if that means taking control over the whole region of piltover and zaun) just so the black rose doesn’t get them.
There is also neutral evil group lead by singed: a once brilliant professor in the academy of piltover, who went completely mad (experiencing on people and doing horrific things) for his ultimate goal of restoring his daughter Oriannha after she died/became a lifeless vessel as a doll, one of his experiments is warwick, once Vander, Violet and Powder’s (the main two protagonists in the S1 show) Father, after shit went south with the piltover police, and a horrible accident orchestrated by shimmer supplied by singed, vander was transormed into warwick by singed.
last but not least there is the chaotic evil group -> Jinx and her goons, Jinx is the evil monster that once was powder, Long story short, after the accident and vander’s presumable death, Vi blamed Powder and called her Jinx, which absolutely broke powder and she was so broken that She accepted silco after he promised to take care of her, her plan is basically to destroy everything that destroyed her, the piltover council, the enforcers, Vi … she doesn’t care about anything anymore and wants to kaboom everything to hell.