This is episode 59 of 70 of Keep Him Alive or We All Die. Play it below, then continue straight into the next episode — the whole season is free and needs no account.
The closing stretch of the season, where the arc pays off.
In 2075, a mysterious sky screen appears, projecting Henry's survival in another world. His injuries sync to all humanity—if he dies, mankind perishes. The Defense Bureau protects him as he battles beasts in his dreams, and global experts train him to navigate the crisis.