Haknyeon knows that it'd be a waste of his time and effort to kick, scream and attempt to make any use of his energy. He closes his eyes, though it's not like he can see much anyway. It just makes him channel an inner peace. He visualizes being back in the dorm with his friends, sleeping under a warm blanket.

The more he thinks this way, the more he remains stable and calm.

But the more time ticks away and he stays in the hole in the wooden box, the more he begins to lose the ability of breathing in air.

It starts when he just begins to achieve inner tranquility, that he feels dizzy. Then his lips part, trying to breathe in and maintain control, but the air gets thinner and his eyes shoot open. At least he'd achieved a little time before the panic would set in.

As his vision begins to blur over, that's when he begins to kick and scream. The tape around his wrists and ankles doesn't help much, but he can reach the roof and bang. He's not sure if the top is starting to budge or not, but he can feel his vision getting blurrier and blurrier. And his efforts are slowing down.

He feels himself give one last effort to lift the lid up and he can hear his faint gasp for air, before everything goes black.