Memoir of the Golden Hairpin

Overnight, Huang Zixia went from being a lady detective famous for her genius at solving cases, to a murderer accused of poisoning her entire family, a wanted fugitive. She tried to escape to the capital to plead her case, but accidentally ran into the Kui Prince, Li ShuBai, instead. By pretending to be a eunuch in the prince's household, she must investigate the mysteries surrounding her case, even as the outlook seems dark and cloudy. Huang Zixia and Li Shubai will follow the scattered clues across land and sea, north to south, from palace to village. At the end of the trail, the shocking truth might be enough to overthrow an entire dynasty…

(Source: ZYMK, translated)