Ascendance of a Bookworm - Volume 5, Extra 1: The Attendant of an Apprentice Blue Shrine Maiden

Rainer, an amateur arcanist and college student, sought to create a new spell far surpassing the magic of the few he inherited from his grandfather. Yet the interference of an unknown event during the casting of his spell led him to be thrown through space and time.

“You want me to go on an impossible journey, sacrifice everything, and risk my own life for a mere 1,000 gold? Hell no!”Lukas never really had anything going in his previous life. When he found himself transmigrated into a new world, he had hoped the soft and gentle touch of a hot milf would mark the beginning of a lavish lifestyle befitting a king.Instead, he quickly learned that he was just some random extra. Worse than that, this extra was only known by everyone as the “Divine Simp,” someone who would do whatever the gods asked.“Divine Simp? Fuck that!”Refusing such a pitiful existence, Lukas decides to take this new life in his own hands. Instead of waiting for some lavish life to fall in his lap, he would create one for himself.How?Well, the gods seem to love him. They shower him with quests, thinking that he will just take them for free. Little do they know... that old extra is dead and gone now.The Divine Simp has become the Divine Extortionist: someone who can obtain the greatest rewards for completing the easiest tasks.

On a certain day, Xu Xing suddenly received yin-yuan eyes; he could see a red string between lovers. Then he discovered that he had a tight connection to his own left hand.

Xu Xing: I TM …… will I be ‘solo’ for life? : )

The second day.

Xu Xing suspected that he had seen a pair of ‘gay’s. The left side of the boy’s body had two red strings. The one in front was tied to his hand, the one in the back was tied to the boy’s right side.

The bottom of Xu Xing’s body suddenly tightened. Trembling in fear, he turned his head — only to see his ‘local area’ connected to a red string tied into a beautiful, intimate bow that was attached to the school grass sitting behind him ~

Xu Xing: Excuse me???

- Description from Novelupdates

He became a teacher at the best magic academy in the empire.
….For being mistaken for someone else.