The man always did his physical training alone around dawn.
He trains in an exclusive Closers-only gym located in the New Seoul branch.
Since he came back to UNION, the man commutes to the gym every morning.
The reason he is stuck training alone at dawn was because he does not want any Closers or his Agents to see him training.
He thinks he is a trainer who is supposed to be responsible for training others.
That is what is on his mind.

The woman always did her physical training alone in the middle of the night.
She also trains in an exclusive Closers-only gym located in the New Seoul branch.
Having decided to return to the mission, she went to the gym sneaking, out without her son noticing.
She is stuck to training alone at midnight is because she does not want any Closers or her Agents to see her training.
Since she was quite well known, she didn’t want to disturb other Closers in the gym by attracting their attention.
That is what is on her mind.

Looking at all those tides in the reply, the man had a bitter smile.
‘Protect humanity together’ huh?
The man couldn’t believe that this one could spit out the big word so easily, which was too far away from himself now.
‘This person must be so strong or shameless to say it’
The man got curious about this agent. But he held it soon.
‘Since we still have this strong and shameless agent’,
“we might still have a hope for the mankind.”

Doing Muscle exercise with a heavy-weight special alloy, the woman had a bitter smile from her hilariously stern tone in the memo.
‘If it were a battlefield and those equipment were your gears for battle, it would risk your life.’
The woman has met no one like him who was worried about her in that way. If she has to pick one, her teammates or her son, maybe?
Thinking back, there was a man in her memory who was worried about her by nagging all the time, knowing that she was the most powerful. It was her teammate and a trainer back in the days who always said that either you are the strongest or the weakest, regular training is one of the duties of an Agent.
What an annoying lecture. But seeing herself training every day following the advice,
“Maybe, he is still my trainer.”

Probably, the man and the woman won’t meet in the gym at the same time.
But if any miracle happens, and they meet each other, it will be nagging from one side and complaining from the other side. The past will happen again, but both will still follow the arrangement just like 20 years ago…
The time had passed.
Many things have changed, but there are things that will never change.
She’s the one who is our hope for humanity, and he is the trainer.