LLPS, a reversible molecular process involving proteins or nucleic acids, participates in many biological activities, including gene transcription,[36] genome organization,[37] epigenetic modification,[38] and signal transduction.[39] Moreover, LLPS of cancer‐related proteins is important to the occurrence, development, and drug resistance of tumors.[40] KAT6A can form aggregated droplets in the nuclei of PARPi‐resistant ovarian cancer cells, and KAT6A LLPS is essential for the interaction between KAT6A and PARP1. This evidence concerns the gene KAT6A and ovarian cancer.