the mods i use to overhaul the sims and make it horrible are:
basemental drugs (put every illicit substance you want in the game if you really need)
path of legends (can be hired for murders ect)
extreme violence (make sure to make your sims invincible if you have this one on, sometimes npcs will have the murder setting on, idk how many times osomatsu has been stabbed cuz of this)
personality please! (adds some more depth to your sims like mbti types ect, kinda cool!)
slice of life (adds a bunch of events which is innocent enough unless you're the matsus)
life tragedies (add a bunch of events and npcs, but you can toggle them on and off so you dont have sims dying of incurable diseases all the time)
wickedwhims (this one is just a straight up sex mod and is absolutely not needed but how else do you get the drama of osomatsu fucking santa claus on the kitchen table? it also assigns sims sexualities and sexual preferences that you can change ect)
everything else is just qol stuff. have fun!
thank you so much for this but also hey osomatsu did what