My Medical Skills Give Me Experience Points - Chapter 268 - 140: Young in Age, Not in Skill. Slowly Turning the Situation Around_3

After causing a tech disaster in the real world, genius shut-in Rin Katsuro is sentenced by the gods and banished to Ereborn—a realm ruled by chaos, where ancient scripts control magic and dungeons feed on trauma.He wakes up in the body of a legendary war criminal—the Demon King's General—and is mistaken for the adoptive father of a demon princess.Armed with unstable “Error Magic” that lets him rewrite reality like code, Rin doesn’t want to be a hero... but when angels declare war on the demon races, and his daughter calls him “Papa,” he might just rewrite fate itself.This is the story of a broken man with nothing left to live for—until an entire world starts calling him Dad, Demon, and Destiny.

His Royal Highness the King of Han, who was afraid of the dark and ghosts and loved to cry, has always been the good baby of the princess.
Until one day, His Royal Highness the King of Han found a book in the bookstore…
Picture book?
Content tags:
Search keyword: Protagonist: King of Han, Princess of Han

- Description from novelbuddy

Transmigrated to become a disciple of the demon sect, relying on the technique modifier to become a giant of the demon path.

[Detected the technique “Blood Nerve”, relying on devouring blood to cultivate]

[Side effect: easily affected by the spirit contained in the blood, becoming bloodthirsty, murderous, insane, and even brain dead]

[Please wait, system modification is in progress…]

[Ding! Modification completed and side effects canceled]

What does it feel like to be a cannon fodder in your novel?

After ruining countless of his novels with sh*t endings,

Gu Yan who finally received his retribution understood.

Heaven spared no one.

In order to protect his small life, Gu Yan has been sent to diligently clean up his own mess.

However, never did he expect that his ‘clean up’ would be too thorough.

Seeing that the man who was suppose to have killed him kneel down on one knee and take out a ring while saying to him, “Marry me.”

Gu Yan: “…”

- Description from Novelupdates