The Mad Physician of the Tang Dynasty: Your Majesty, Why Are You Green Again?

Shen Yan, a half-baked modern research nut, transmigrates to the Zhenguan era and starts out distilling medicine in a broken pot in the Cold Palace, while the livestream chat goes wild.

Just then, Li Shimin accidentally takes a Taoist alchemist’s pills and is poisoned, hovering near death. The imperial physicians kneel in a heap, and the court descends into chaos.

Shen Yan grabs a jar of his homemade “super green vitriol solution” and rushes into the Taiji Palace, forcing it down the emperor’s throat in front of the entire court.

Everyone thinks he’s done for.

The next moment, Li Shimin’s eyes turn green. He crushes the dragon throne with his bare hands and roars as he chases an alchemist halfway across the palace: “I feel like I could take on ten Turkic khagans!”

From then on, the Tang’s whole vibe goes completely off the rails.

Cheng Yaojin volunteers to test a drug and becomes immensely strong, but can’t resist charging headfirst into walls. Wei Zheng accidentally takes a brain-boosting drug, empowering his sharp tongue until he makes thirty censors cry in a single day. Fang Xuanling tries to establish regulations, only to discover that rules can never keep up with the side effects. Changsun Wuji’s careful schemes are derailed by a bottle of “truth serum,” leaving him thoroughly humiliated on the spot.

Starting from his Cold Palace laboratory, Shen Yan goes on to establish the Imperial Medicine Bureau, the Great Tang Academy of Biopharmaceutical Sciences, a clinical trial camp, a Drug Administration, an enhanced army, and overseas medicinal-herb trade routes.

Everyone calls him a madman.

But if they’re poisoned, they need him. If they’re going to war, they need him. If they want to live longer, they need him too.

Li Shimin looks over the court full of glowing green, laughing, dancing, reciting poetry, and rampaging officials, and falls silent for a long while.

“Shen Yan, can you... stop giving that medicine to Wei Zheng for a bit?”