Sui-Tang: Yang Er Peeked at the Diary and Got Clever

Yang Ang transmigrated as Yang Guang's third son and acquired a diary.

Recording historical events earned him rewards, but little did he know that his cheap father had a copy of the diary.

Yang Ang: "Cloudy today. The second campaign against Goguryeo will fail, and the aristocratic clans will stab us in the back..."

Yang Guang: "This is surely a heavenly book, a warning from Heaven to me and to the Great Sui."

At the next morning court session, Yang Guang reversed his decision to wage war. Yang Ang thought it was the butterfly effect.

He never expected his cheap father to grow more and more shrewd, destroy Goguryeo, eliminate the aristocratic clans, and form an expeditionary army to the west...

He even began to wonder whether his father was a transmigrator.

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.