Korosukult or K2 is underground collective stemming from other Sigilkore/underground groups such as BMB Deathrow, Jewelxxet, and 1c34.

Members include: TGWOG, exset, Narcix, textkill, noli, nyli, clay10m erice, ksuuvi, Feardorian, 1134bart, sedate, sprinks, velokey, ss3bby, res, matariii, lati, noveks, Heroinsick, Kartier K

Old members:
STARSAGA, Tah, drevenci, Bloody!, clay10, rachyl, Velokey, wrath, truey, vanish, res, haunt, Ecoys, yuke, occult.14, fk, yumi divine, OOSKULLY, GEMCALIBUR, Roxas358, aghast, Zuro, Oupium, entity, Vnmpire,