i see, but then i think in the end mc decided to hide his appearance and achievement in the past is just to make sure nothing go wrong in the present then, i guess?
just like the esper girl decided to take the credit for mc achievement in the past to make sure the public doesnt know about her onii-chan?
but then, if the mc doesnt return in the past, the esper girl will die, which mean death for one of the heroes
or perhaps there will a new hero replacement if she died, since the time will try to correct itself?
gosh, thats why i think its annoying if a story decide to do time travel shenanigan[
oh well, at least they are reunited in the present time now/spoiler]