The Synthesis Wizard - Chapter 77 - : Betrayal

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

A teenager who unexpectedly gets transported to the modern world from ‘the world of the immortals’ . He finds himself in the body of an ordinary guy. He wants to go back to his world and for that, he will have to practice to get stronger and investigate the reason why and how he crossed through to this world.

- Description from Novelupdates

One morning, after being bound to the system, MC started his routine of always being captured/ attacked by the ML.

The 51st year of Konoha was designated by later generations as “the beginning of reform in the ninja world” and “the first year of Vientiane renewal”.

Orochimaru made an indelible contribution to this.

Because he was haunted by a lamp god.

—————————

After being guided by a traveler who became a lamp god, watch how Orochimaru harvests leeks from the ninja world and walks the road to eternal life.

- Description from novelbuddy