Except for Nagato, they all existed prior to 3 years ago, just possibly not in the same form as now. For instance, Koizumi says he didn't notice his esper powers until just 3 years ago.
Nagato would have to eat 3 or 597, depending on your point of view.
Why are the two of you staring at me like that?What!?
No-You know Mikuru-chan, on Setsubun, beans aren't just for throwing, you also eat one for each year in your age.Really?Let's see...One,
Two,Three...StaaaaareDon't mind us.
Please, continue counting.
