Flash Blink Gu

When the rank two demonic Gu Master flees as a dark shadow during the mid-year exam ambush, a Gu worm flies out and an old voice commands Flash Blink Gu to explode. ^{ch. 76}

Blinding light burst

On use it explodes into blinding white light that turns the dark forest bright. ^{ch. 76}

Effect

The white light is unavoidable and forces the shadow-form attacker back into human form. Although Flash Blink Gu is only rank one and consumable, it is the complete counter of rank two Shadow Follower Gu. Once darkness is dispelled, Shadow Follower Gu needs three hours of rest before it can be used again. ^{ch. 76}

Gu Yue Sou, a white haired rank two Gu Master, is the one who uses that counter and then confronts the attacker. ^{ch. 76}

Path

Cited chapters describe the light burst without naming a cultivation path for this Gu.