There are people in this world who can spot a future overpowered protagonist when he's still a nobody.
Yet just as that protagonist is about to make it big, they teach him his "first lesson" about human nature.
Outsiders can't understand how such a good hand could be played so badly. In short, they're the second-in-command who gets thrown under the bus.
Then, with a thunderous crash, the System makes its dazzling entrance.
One after another, these people awaken.
The first arc: They were born before the interstellar age began [In progress]
The second-in-commands: After all the hating, what I really hate is that you've got someone new by your side, and that you don't care enough about me.
The second-in-commands have something to say: If only we had each other and no one else.
Theme: Love at first sight, then falling for each other all over again as time goes by.