Caido was just an ordinary 26 year old man who used to live in the 21th century.
He owned a horse ranch, and to make ends meet he worked as a humble Internet marketing adviser.
Until one day he was hit by infamous killer of System transmigration novel MC's, truck-sama.
Thinking he got transmigrated into a system like in the stories, he was quite pleased.
However, things never turn out the way you want them to.
It turned out he had transmigrated into a System transmigration novel where the main character had vanished, causing the whole plot to stop.
Having no other choice but to take the place of the MC and finish the story, he has to fight monsters, save worlds, go through high school again and deal with the original MC's ever-present, over-possessive love interest.
[English is not my 1st language]
[This is my first story]
[Updates: nothing promised]
[Cover image is mine]