A Grade 4 mid-grade pill and the most top-tier pill among Grade 4 Pills, with an abysmally low success rate. It greatly increases the chances of a Jindan-perfected Xiushi achieving Jieying, which is the first and most foundational of the three great chasms in a cultivator's journey (Jieying, Dujie, Feisheng). Its rarity surpasses even Grade 5, 6, or 7 Pills. Chen Wen refined one and presented it to Chen Miaomiao.
