Beneath the seemingly tranquil roof of the prefect's residence, undercurrents of intrigue swirl. Lin Qingci deliberately conceals her sharp edges, pretending to be a gentle, timid, and submissive woman while hiding her true thoughts. Amid layers of schemes and conspiracies, she carefully plots each move, secretly investigating the truth behind an old case while patiently awaiting the right moment. Once her plans are in place, she casts off her disguise and settles every past grudge one by one. Amid the turmoil of the grand residence, she clears her name of an unjust accusation and finally reveals her brilliance.