Regret Pool

The Immortal Gu offered from the house are ones destroyed in the battle of Yi Tian Mountain. In the days before that meeting, Immortal Gu House Regret Pool activated, using the left insignias and the River of Time tributary to refine those Immortal Gu again. Most results are soul path; time path attempts fail; there are no strength path Immortal Gu because Da Li left no insignia before Regret Pool was built. ^{ch. 1104}

When Fang Yuan later reaches Ying Wu Xie’s former camp under another turbulent flow island, Regret Pool has already been taken apart, the surrounding Gu formations are gone, and the River of Time tributary Shadow Sect kept there is missing. ^{ch. 1158}

After Shadow Sect is beaten down, twelve Immortal Gu House construction plans remain among its resources, and Regret Pool is named in that list. ^{ch. 1380}

When Fang Yuan later builds an incomplete Immortal Gu House, he takes reference from Regret Pool among many other Immortal Gu Houses, with the skeleton based on Graceful Chaotic Duel Stage. ^{ch. 1628}

Fang Yuan states that other than tributaries of the River of Time, Immortal Gu Regret is the core of Immortal Gu House Regret Pool. The Regret Pool left behind in Eastern Sea was half-complete and did not have Immortal Gu Regret. ^{ch. 1649}

Later narration again calls Regret Pool, Heavenly Pool, and Wine Pool the three legendary pools of the world, restates the insignia and River of Time tributary re-refinement at about fifty to sixty percent success, and treats Regret Pool as one Immortal Gu House model merged into Fang Yuan’s Four Elements Square Regret Blood Refinement Pool, with rank eight Immortal Gu Regret used as the essence of Regret Pool for a pavilion in that pool. ^{ch. 2077}