The End Of The World’s Poisonous Mom And Monster Baby - Volume 3 Chapter 39 Sending the bait to the door

Childhood sweethearts.
The most popular person in school is my childhood sweetheart.

- Description from Novelupdates

Have you heard of it?In the dead of night, if you turn on a music player, put on earphones, hide under the blanket, and listen to a single on loop…After it loops forty-four times, you will fall asleep. If you are unlucky when you open your eyes again, you will no longer be lying on your bed, but you will enter a strange space completely isolated from reality.That space… On the surface, it looks like the places we usually see—your bedroom, living room, underground parking garage, bathroom, basketball court, construction site, and so on. But if you observe carefully, you will discover that they are different… Everything is different.***This is the experience of an ordinary person who, after acquiring superpowers, transforms and grows step by step in Dead Ends to reach the peak.

Ryu Han-bin, the main character who fell into a new world after being chosen as a ‘suitable person’.

Because of the error in the guidelines, the training is repeated endlessly…