A brief description of the “The Former Top 1’s Sub-Character Training Diary ~A Dedicated Player Is Currently Conquering Another World!~” manga:
The main character is rarely seen in high and high school. And all because from morning to night he was only interested in video games. So he became the best in one MMO, this was his life.
Once his character was suddenly hacked. All progress was lost, all life was wasted …
But waking up, he finds himself in that very game, and in himself he recognizes his long-forgotten second character. And now he has to pump from scratch!