He trained for months.
Holding his breath for over four minutes, swimming through pitch-black tunnels, memorizing emergency codes in case something went wrong.
But this wasn’t just a challenge—it was his final exam.
At this elite survival academy, graduation meant conquering the impossible.
And the final test?
Complete a mission entirely underwater—with no second chances.
But halfway through… disaster struck.
The oxygen tank malfunctioned.
The exit was blocked.
And he was running out of air.
His classmates watched helplessly from above as the clock ticked.
Would he make it out alive?
Or would this be the final test he’d ever take?
