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Guts Gu

Gu worm in Reverend Insanity

Guts Gu comes from gutstones on Dang Hun Mountain and strengthens a person's soul.

Fang Yuan first meets this Gu on Dang Hun Mountain inside Hu Immortal blessed land. When he smashes a gutstone, a Gu flies out, turns into a grey eerie light, and enters his body. His mind clears, strength enters his soul, and the buzzing in his ears lessens. ch. 410

Production

Souls of living beings break on Dang Hun Mountain, scatter, and fuse with it. Over time gutstones form, and some of those gutstones hold guts Gu. ch. 410 Not every gutstone contains one. ch. 411

In the early Hu Immortal stretch the text says guts Gu lasts only an instant after it appears, then disperses or is broken down by the mountain again. Gutstones cannot be moved, so the Gu must be used on the spot. ch. 410

Later production still depends on souls. Guts Gu does not appear from nothing; it requires souls. ch. 1502 On a repaired Dang Hun Mountain, Fang Yuan runs a soul path formation that spends soul beasts and soul cores so guts Gu form in huge batches. ch. 1792

Effect

Guts Gu strengthens a person’s soul. Fang Yuan uses it both to heal soul injuries and to raise soul foundation beyond recovery alone. The soul cannot be strengthened without limit this way. If the soul is not concentrated enough, large numbers of guts Gu can over-inflate it and cause a certain-death disaster. ch. 410

Later on the same mountain he raises his soul to a hundred times a normal person’s, called hundred man soul, and stops there because one more use would destroy the soul. ch. 422

Rockmen who obtain gutstones can use guts Gu to expand their souls until the overflow forms new little rockmen. ch. 413

When the Gu is used from storage, airsac Gu are crushed and the guts Gu inside break, turning into nourishment that strengthens and recovers the soul. ch. 822 In the aperture the same Gu shatter into a mysterious power that acts on the soul. ch. 1092 The text later calls guts Gu the most perfect nutrient for the soul. ch. 1792

In the Ren Zu legend

Introducing Dang Hun Mountain, this Legends of Ren Zu episode follows: Wisdom Gu tells Ren Zu that to climb past Dang Hun Mountain he must smash gutstones and gain guts Gu’s help. ch. 410 In the telling that follows, Ren Zu picks guts Gu there, his soul strengthens, and he can endure the mountain’s tremors well enough to pass. ch. 411

Trade and storage

Central Continent learns that guts Gu can leave Dang Hun Mountain and be stored, so they can be traded. Fang Yuan begins selling them after souls are fed into the mountain to form new batches. The text also calls guts Gu consumable: gone after one use. Fang Yuan holds a monopoly on the guts Gu market, choosing his buyers and setting how much he sells. ch. 707

Compared to a new rival

Evaluating a newly devised immortal material, star night mucus, Fang Yuan judges that in the short run its value and profit would rival guts Gu’s. ch. 931

Mortal Gu label

While recovering from Luo Po Valley, Fang Yuan consumes guts Gu again. The narration calls guts Gu a mortal Gu and says healing soul injuries with it shows instant effects. ch. 997 While managing his immortal aperture in Lang Ya blessed land, Fang Yuan enters Luo Po Valley every day to temper his soul, then uses guts Gu afterward to heal and strengthen it. ch. 1084 Formed from a secluded domain of heaven and earth, it is a mortal Gu whose soul strengthening can affect even Gu Immortals. ch. 1792

Best way to grow rockmen

Rockmen desire guts Gu more than humans do, since it is the best way to grow and develop a rockman tribe. ch. 1146

Saving another’s soul

After capturing Ye Lui Qun Xing’s corpse and sealing his soul, Fang Yuan uses many guts Gu to pull the soul back from the verge of dissipation. The narration calls guts Gu one of the world’s best methods of soul strengthening despite being only a mortal Gu, because it was created from a secluded domain of heaven and earth. ch. 1206

Healing through a water path trial

Taking Jing Miao Zi’s aptitude test inside Sea Calming Lord’s dream realm, Fang Yuan can fall into the pool seventeen to eighteen times on each entry before his soul reaches its limit, and then uses guts Gu to heal himself. ch. 1247

Beyond ordinary despite being mortal

It is only a mortal Gu, but coming from Dang Hun Mountain puts it beyond ordinary. When Ying Wu Xie’s Soul Howl hits Fang Yuan, a soul injury does not matter to him, because he has guts Gu. ch. 1257

Dream realm exploration

When Fang Yuan’s attempt to explore a dream realm fails and injures his soul, he crushes two guts Gu in succession and the injury heals completely. He names guts Gu one of his two advantages for exploring dream realms, since it heals the soul that exploration injures. Wanting a large personal supply for further exploration, he stops selling his portion of guts Gu for profit and accumulates it instead, and the resulting drop in income leads him to expand his other resource businesses. ch. 1324

Killing desolate beasts for souls

Guts Gu’s production is limited by the quality and quantity of souls available. Lang Ya Sect supplies it by killing desolate beasts in Tai Qiu for their souls, replenished by souls brought in from treasure yellow heaven and the northern icy plain. ch. 1327

Cannot calm an overworked soul

Guts Gu protects Fang Yuan’s soul, but the soul still turns agitated when he works it too hard, and guts Gu cannot resolve that; only sleep restores its calm. ch. 1328

Soul path dao marks

Dang Hun Mountain and Luo Po Valley are filled with soul path dao marks. The text says guts Gu and Luo Po winds are in essence adding soul path dao marks to Fang Yuan’s soul. ch. 1482

Raising rockmen with ease

Weighing which variant human race to raise in City Well, Fang Yuan recalls that guts Gu let him raise a batch of rockmen before, and would let him do so again very easily. ch. 1489

Best supporting Gu for dream exploration

Guts Gu is the best supporting Gu for exploring dream realms. ch. 1492

Supply below demand

Supply runs below demand, leaving even Tang clan’s Tang Fang Ming barely able to buy any. ch. 1495

Human path mention

Reading The Legends of Ren Zu, Fang Yuan lists guts Gu with hope Gu, vanity Gu, stubborn Gu, pride Gu, self Gu, and suffering Gu, and treats them as human path Gu worms. ch. 1774

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