Fairy, help me cultivate.

Thrust into a perilous world of cultivation, Chen Yao finds himself branded with a deadly demonic mark, forced to act as an undercover spy within a righteous immortal sect. Caught between the ruthless demands of the demonic path and the lethal scrutiny of the immortals, his survival hangs by a thread. Fortunately, he awakens a unique system that grants him the ability to copy the innate talents and attributes of female cultivators simply by spending time with them. Seeking refuge and a way to cleanse his corrupted body, Chen Yao infiltrates the immortal sect's most formidable lineage—one comprised entirely of extraordinary female masters and disciples. Thus begins a thrilling and dangerous journey where every alliance is a calculated risk, every interaction unlocks newfound power, and a single misstep could expose his true identity. Can he outsmart both sects, heal his scars, and rise to the pinnacle of immortality, or will his unorthodox path lead to his downfall?