MTL - Prodigiously Amazing Weaponsmith (Don't Mess with the Dark Princess) - Chapter 4909 So-called cooperation

Betrayed by the kingdom he bled for. Executed by the brother he once protected. Daemon died a war hero—branded a monster.But death isn’t the end. Not for him.Reborn on the day of his cursed birth, under the same blood-drenched eclipse, Daemon remembers everything: the lies, the poison, the crown soaked in his mother’s blood. This time, he won’t beg. He won’t protect.He’ll burn the empire from the inside out.His twin brother Gabriel—the golden child, the “righteous” king—stole everything. So Daemon will take it all back, piece by piece.The nobles who cheered at his execution? Dead.The soldiers who held him down? Ash.The kingdom that worshipped a fraud? Buried under screams.This isn’t about justice. This is about revenge, and Daemon’s not stopping until his brother’s skin hangs from the palace gates.The empire made a monster.Now it gets to meet him.

After years of longing, Mu Chenyan was finally going to marry the man of her dreams — Yuan Xuan. However, on her wedding day, the tragic death of Shu Qinger, her well-known romantic competitor led to Mu Chenyan’s prison sentence.

The first great emperor in the world was betrayed by his confidante and perished. Millions of years later, the great emperor’s soul returned and was reborn as Ye Yan, the son-in-law who was kicked out by the Chu family with a letter of divorce, restarting the supreme journey. Open the gate of immortality, kill the Jiuzhongtian, and cast an invincible name again!

- Description from novelbuddy

It has been more than ten years since he was transported to another world. The protagonist Deris Fahrenheit, who has became a magician with special circumstances, was freely enjoying his life in this world. However, a girl appeared before him and asked him to make her his disciple. That girl seems to be a transported person――

It’s a story of him who becomes the girl’s teacher and trains her to achieve her revenge (?) in otherworld.