A medicinal decoction that Su Zhuoguang has been secretly taking since his wedding day. It has harmful effects on the body, but Su Zhuoguang believed his tough constitution could withstand it better than Qiao Shilian's weak one. He also wanted to prevent Qiao Shilian from risking childbirth, which he considers extremely perilous. Qiuying mistakenly brought it to Qiao Shilian, but Su Zhuoguang shattered the bowl with a pebble to prevent her from drinking it.
