A groom named Wang entered Mount Lao to study Taoism when he was young. As time passed, he stopped consuming mortal food, subsisting only on pine nuts and white stones, causing hair to gradually sprout all over his body.

Later, Groom Wang returned home to serve his aging mother, gradually resuming the habit of eating cooked food, though he still held a fondness for stones.

No matter the stone, once it reached his hand, he would chew it with relish, as if it were a taro root. Moreover, he possessed a peculiar skill: holding a stone up to the sun, he could instantly discern whether it tasted sour, sweet, bitter, or spicy.

After his mother passed away, Groom Wang retreated back to Mount Lao to cultivate immortal arts, a practice he has maintained for seventeen or eighteen years now.